CVE-2023-22409 (GCVE-0-2023-22409)

Vulnerability from cvelistv5 – Published: 2023-01-12 00:00 – Updated: 2025-04-07 15:33
VLAI?
Title
Junos OS: SRX Series, MX Series with SPC3: When an inconsistent NAT configuration exists and a specific CLI command is issued the SPC will reboot
Summary
An Unchecked Input for Loop Condition vulnerability in a NAT library of Juniper Networks Junos OS allows a local authenticated attacker with low privileges to cause a Denial of Service (DoS). When an inconsistent "deterministic NAT" configuration is present on an SRX, or MX with SPC3 and then a specific CLI command is issued the SPC will crash and restart. Repeated execution of this command will lead to a sustained DoS. Such a configuration is characterized by the total number of port blocks being greater than the total number of hosts. An example for such configuration is: [ services nat source pool TEST-POOL address x.x.x.0/32 to x.x.x.15/32 ] [ services nat source pool TEST-POOL port deterministic block-size 1008 ] [ services nat source pool TEST-POOL port deterministic host address y.y.y.0/24] [ services nat source pool TEST-POOL port deterministic include-boundary-addresses] where according to the following calculation: 65536-1024=64512 (number of usable ports per IP address, implicit) 64512/1008=64 (number of port blocks per Nat IP) x.x.x.0/32 to x.x.x.15/32 = 16 (NAT IP addresses available in NAT pool) total port blocks in NAT Pool = 64 blocks per IP * 16 IPs = 1024 Port blocks host address y.y.y.0/24 = 256 hosts (with include-boundary-addresses) If the port block size is configured to be 4032, then the total port blocks are (64512/4032) * 16 = 256 which is equivalent to the total host addresses of 256, and the issue will not be seen. This issue affects Juniper Networks Junos OS on SRX Series, and MX Series with SPC3: All versions prior to 19.4R3-S10; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S6; 20.3 versions prior to 20.3R3-S6; 20.4 versions prior to 20.4R3-S5; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S1; 22.1 versions prior to 22.1R2-S2, 22.1R3; 22.2 versions prior to 22.2R2.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • 606 Unchecked Input for Loop Condition
  • Denial of Service (DoS)
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: unspecified , < 19.4R3-S10 (custom)
Affected: 20.1R1 , < 20.1* (custom)
Affected: 20.2 , < 20.2R3-S6 (custom)
Affected: 20.3 , < 20.3R3-S6 (custom)
Affected: 20.4 , < 20.4R3-S5 (custom)
Affected: 21.1 , < 21.1R3-S4 (custom)
Affected: 21.2 , < 21.2R3-S3 (custom)
Affected: 21.3 , < 21.3R3-S3 (custom)
Affected: 21.4 , < 21.4R3-S1 (custom)
Affected: 22.1 , < 22.1R2-S2, 22.1R3 (custom)
Affected: 22.2 , < 22.2R2 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T10:07:06.724Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://kb.juniper.net/JSA70205"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-22409",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-07T14:57:50.420083Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-07T15:33:24.631Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "platforms": [
            "SRX Series, MX Series with SPC3"
          ],
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "19.4R3-S10",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "20.1*",
              "status": "affected",
              "version": "20.1R1",
              "versionType": "custom"
            },
            {
              "lessThan": "20.2R3-S6",
              "status": "affected",
              "version": "20.2",
              "versionType": "custom"
            },
            {
              "lessThan": "20.3R3-S6",
              "status": "affected",
              "version": "20.3",
              "versionType": "custom"
            },
            {
              "lessThan": "20.4R3-S5",
              "status": "affected",
              "version": "20.4",
              "versionType": "custom"
            },
            {
              "lessThan": "21.1R3-S4",
              "status": "affected",
              "version": "21.1",
              "versionType": "custom"
            },
            {
              "lessThan": "21.2R3-S3",
              "status": "affected",
              "version": "21.2",
              "versionType": "custom"
            },
            {
              "lessThan": "21.3R3-S3",
              "status": "affected",
              "version": "21.3",
              "versionType": "custom"
            },
            {
              "lessThan": "21.4R3-S1",
              "status": "affected",
              "version": "21.4",
              "versionType": "custom"
            },
            {
              "lessThan": "22.1R2-S2, 22.1R3",
              "status": "affected",
              "version": "22.1",
              "versionType": "custom"
            },
            {
              "lessThan": "22.2R2",
              "status": "affected",
              "version": "22.2",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2023-01-11T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An Unchecked Input for Loop Condition vulnerability in a NAT library of Juniper Networks Junos OS allows a local authenticated attacker with low privileges to cause a Denial of Service (DoS). When an inconsistent \"deterministic NAT\" configuration is present on an SRX, or MX with SPC3 and then a specific CLI command is issued the SPC will crash and restart. Repeated execution of this command will lead to a sustained DoS. Such a configuration is characterized by the total number of port blocks being greater than the total number of hosts. An example for such configuration is: [ services nat source pool TEST-POOL address x.x.x.0/32 to x.x.x.15/32 ] [ services nat source pool TEST-POOL port deterministic block-size 1008 ] [ services nat source pool TEST-POOL port deterministic host address y.y.y.0/24] [ services nat source pool TEST-POOL port deterministic include-boundary-addresses] where according to the following calculation: 65536-1024=64512 (number of usable ports per IP address, implicit) 64512/1008=64 (number of port blocks per Nat IP) x.x.x.0/32 to x.x.x.15/32 = 16 (NAT IP addresses available in NAT pool) total port blocks in NAT Pool = 64 blocks per IP * 16 IPs = 1024 Port blocks host address y.y.y.0/24 = 256 hosts (with include-boundary-addresses) If the port block size is configured to be 4032, then the total port blocks are (64512/4032) * 16 = 256 which is equivalent to the total host addresses of 256, and the issue will not be seen. This issue affects Juniper Networks Junos OS on SRX Series, and MX Series with SPC3: All versions prior to 19.4R3-S10; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S6; 20.3 versions prior to 20.3R3-S6; 20.4 versions prior to 20.4R3-S5; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S1; 22.1 versions prior to 22.1R2-S2, 22.1R3; 22.2 versions prior to 22.2R2."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "606 Unchecked Input for Loop Condition",
              "lang": "en",
              "type": "text"
            }
          ]
        },
        {
          "descriptions": [
            {
              "description": "Denial of Service (DoS)",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-01-12T00:00:00.000Z",
        "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "shortName": "juniper"
      },
      "references": [
        {
          "url": "https://kb.juniper.net/JSA70205"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "The following software releases have been updated to resolve this specific issue: 19.4R3-S10, 20.2R3-S6, 20.3R3-S6, 20.4R3-S5, 21.1R3-S4, 21.2R3-S3, 21.3R3-S3, 21.4R3-S1, 22.1R2-S2, 22.1R3, 22.2R2, 22.3R1, and all subsequent releases.\n"
        }
      ],
      "source": {
        "advisory": "JSA70205",
        "defect": [
          "1656798"
        ],
        "discovery": "USER"
      },
      "title": "Junos OS: SRX Series, MX Series with SPC3: When an inconsistent NAT configuration exists and a specific CLI command is issued the SPC will reboot",
      "workarounds": [
        {
          "lang": "en",
          "value": "Please ensure the deterministic NAT configuration is consistent as shown in the description of the problem section."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
    "assignerShortName": "juniper",
    "cveId": "CVE-2023-22409",
    "datePublished": "2023-01-12T00:00:00.000Z",
    "dateReserved": "2022-12-27T00:00:00.000Z",
    "dateUpdated": "2025-04-07T15:33:24.631Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://kb.juniper.net/JSA70205\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T10:07:06.724Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-22409\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-07T14:57:50.420083Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-04-07T14:57:55.607Z\"}}], \"cna\": {\"title\": \"Junos OS: SRX Series, MX Series with SPC3: When an inconsistent NAT configuration exists and a specific CLI command is issued the SPC will reboot\", \"source\": {\"defect\": [\"1656798\"], \"advisory\": \"JSA70205\", \"discovery\": \"USER\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"Juniper Networks\", \"product\": \"Junos OS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"19.4R3-S10\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"20.1R1\", \"lessThan\": \"20.1*\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"20.2\", \"lessThan\": \"20.2R3-S6\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"20.3\", \"lessThan\": \"20.3R3-S6\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"20.4\", \"lessThan\": \"20.4R3-S5\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.1\", \"lessThan\": \"21.1R3-S4\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.2\", \"lessThan\": \"21.2R3-S3\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.3\", \"lessThan\": \"21.3R3-S3\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"21.4\", \"lessThan\": \"21.4R3-S1\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"22.1\", \"lessThan\": \"22.1R2-S2, 22.1R3\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"22.2\", \"lessThan\": \"22.2R2\", \"versionType\": \"custom\"}], \"platforms\": [\"SRX Series, MX Series with SPC3\"]}], \"exploits\": [{\"lang\": \"en\", \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"The following software releases have been updated to resolve this specific issue: 19.4R3-S10, 20.2R3-S6, 20.3R3-S6, 20.4R3-S5, 21.1R3-S4, 21.2R3-S3, 21.3R3-S3, 21.4R3-S1, 22.1R2-S2, 22.1R3, 22.2R2, 22.3R1, and all subsequent releases.\\n\"}], \"datePublic\": \"2023-01-11T00:00:00.000Z\", \"references\": [{\"url\": \"https://kb.juniper.net/JSA70205\"}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Please ensure the deterministic NAT configuration is consistent as shown in the description of the problem section.\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.0.9\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An Unchecked Input for Loop Condition vulnerability in a NAT library of Juniper Networks Junos OS allows a local authenticated attacker with low privileges to cause a Denial of Service (DoS). When an inconsistent \\\"deterministic NAT\\\" configuration is present on an SRX, or MX with SPC3 and then a specific CLI command is issued the SPC will crash and restart. Repeated execution of this command will lead to a sustained DoS. Such a configuration is characterized by the total number of port blocks being greater than the total number of hosts. An example for such configuration is: [ services nat source pool TEST-POOL address x.x.x.0/32 to x.x.x.15/32 ] [ services nat source pool TEST-POOL port deterministic block-size 1008 ] [ services nat source pool TEST-POOL port deterministic host address y.y.y.0/24] [ services nat source pool TEST-POOL port deterministic include-boundary-addresses] where according to the following calculation: 65536-1024=64512 (number of usable ports per IP address, implicit) 64512/1008=64 (number of port blocks per Nat IP) x.x.x.0/32 to x.x.x.15/32 = 16 (NAT IP addresses available in NAT pool) total port blocks in NAT Pool = 64 blocks per IP * 16 IPs = 1024 Port blocks host address y.y.y.0/24 = 256 hosts (with include-boundary-addresses) If the port block size is configured to be 4032, then the total port blocks are (64512/4032) * 16 = 256 which is equivalent to the total host addresses of 256, and the issue will not be seen. This issue affects Juniper Networks Junos OS on SRX Series, and MX Series with SPC3: All versions prior to 19.4R3-S10; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S6; 20.3 versions prior to 20.3R3-S6; 20.4 versions prior to 20.4R3-S5; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S1; 22.1 versions prior to 22.1R2-S2, 22.1R3; 22.2 versions prior to 22.2R2.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"606 Unchecked Input for Loop Condition\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"Denial of Service (DoS)\"}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2023-01-12T00:00:00.000Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-22409\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-04-07T15:33:24.631Z\", \"dateReserved\": \"2022-12-27T00:00:00.000Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2023-01-12T00:00:00.000Z\", \"assignerShortName\": \"juniper\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.