CVE-2022-41716 (GCVE-0-2022-41716)

Vulnerability from cvelistv5 – Published: 2022-11-02 15:28 – Updated: 2024-10-30 13:59
VLAI?
Title
Unsanitized NUL in environment variables on Windows in syscall and os/exec
Summary
Due to unsanitized NUL values, attackers may be able to maliciously set environment variables on Windows. In syscall.StartProcess and os/exec.Cmd, invalid environment variable values containing NUL values are not properly checked for. A malicious environment variable value can exploit this behavior to set a value for a different environment variable. For example, the environment variable string "A=B\x00C=D" sets the variables "A=B" and "C=D".
Severity ?
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CWE
  • CWE-158 - Improper Neutralization of Null Byte or NUL Character
Assigner
Go
References
Impacted products
Vendor Product Version
Go standard library syscall Affected: 0 , < 1.18.8 (semver)
Affected: 1.19.0-0 , < 1.19.3 (semver)
Create a notification for this product.
    Go standard library os/exec Affected: 0 , < 1.18.8 (semver)
Affected: 1.19.0-0 , < 1.19.3 (semver)
Create a notification for this product.
Credits
RyotaK (https://twitter.com/ryotkak)
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:49:43.904Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://security.netapp.com/advisory/ntap-20230120-0007/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/issue/56284"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/cl/446916"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://groups.google.com/g/golang-announce/c/mbHY1UY3BaM/m/hSpmRzk-AgAJ"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://pkg.go.dev/vuln/GO-2022-1095"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 6.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-41716",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-08-01T14:02:04.861393Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-30T13:59:43.967Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "syscall",
          "platforms": [
            "windows"
          ],
          "product": "syscall",
          "programRoutines": [
            {
              "name": "StartProcess"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.18.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.19.3",
              "status": "affected",
              "version": "1.19.0-0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "os/exec",
          "platforms": [
            "windows"
          ],
          "product": "os/exec",
          "programRoutines": [
            {
              "name": "Cmd.environ"
            },
            {
              "name": "dedupEnv"
            },
            {
              "name": "dedupEnvCase"
            },
            {
              "name": "Cmd.CombinedOutput"
            },
            {
              "name": "Cmd.Environ"
            },
            {
              "name": "Cmd.Output"
            },
            {
              "name": "Cmd.Run"
            },
            {
              "name": "Cmd.Start"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.18.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.19.3",
              "status": "affected",
              "version": "1.19.0-0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "RyotaK (https://twitter.com/ryotkak)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Due to unsanitized NUL values, attackers may be able to maliciously set environment variables on Windows. In syscall.StartProcess and os/exec.Cmd, invalid environment variable values containing NUL values are not properly checked for. A malicious environment variable value can exploit this behavior to set a value for a different environment variable. For example, the environment variable string \"A=B\\x00C=D\" sets the variables \"A=B\" and \"C=D\"."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-158: Improper Neutralization of Null Byte or NUL Character",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-12T19:12:49.198Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/56284"
        },
        {
          "url": "https://go.dev/cl/446916"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/mbHY1UY3BaM/m/hSpmRzk-AgAJ"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2022-1095"
        }
      ],
      "title": "Unsanitized NUL in environment variables on Windows in syscall and os/exec"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2022-41716",
    "datePublished": "2022-11-02T15:28:19.574Z",
    "dateReserved": "2022-09-28T17:00:06.607Z",
    "dateUpdated": "2024-10-30T13:59:43.967Z",
    "requesterUserId": "7d08541a-cd0a-42e2-8f81-76e6ceb65fc3",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://security.netapp.com/advisory/ntap-20230120-0007/\"}, {\"url\": \"https://go.dev/issue/56284\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://go.dev/cl/446916\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://groups.google.com/g/golang-announce/c/mbHY1UY3BaM/m/hSpmRzk-AgAJ\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://pkg.go.dev/vuln/GO-2022-1095\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T12:49:43.904Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-41716\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-08-01T14:02:04.861393Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-08-01T14:02:11.938Z\"}}], \"cna\": {\"title\": \"Unsanitized NUL in environment variables on Windows in syscall and os/exec\", \"credits\": [{\"lang\": \"en\", \"value\": \"RyotaK (https://twitter.com/ryotkak)\"}], \"affected\": [{\"vendor\": \"Go standard library\", \"product\": \"syscall\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"1.18.8\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"1.19.0-0\", \"lessThan\": \"1.19.3\", \"versionType\": \"semver\"}], \"platforms\": [\"windows\"], \"packageName\": \"syscall\", \"collectionURL\": \"https://pkg.go.dev\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"StartProcess\"}]}, {\"vendor\": \"Go standard library\", \"product\": \"os/exec\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"1.18.8\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"1.19.0-0\", \"lessThan\": \"1.19.3\", \"versionType\": \"semver\"}], \"platforms\": [\"windows\"], \"packageName\": \"os/exec\", \"collectionURL\": \"https://pkg.go.dev\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"Cmd.environ\"}, {\"name\": \"dedupEnv\"}, {\"name\": \"dedupEnvCase\"}, {\"name\": \"Cmd.CombinedOutput\"}, {\"name\": \"Cmd.Environ\"}, {\"name\": \"Cmd.Output\"}, {\"name\": \"Cmd.Run\"}, {\"name\": \"Cmd.Start\"}]}], \"references\": [{\"url\": \"https://go.dev/issue/56284\"}, {\"url\": \"https://go.dev/cl/446916\"}, {\"url\": \"https://groups.google.com/g/golang-announce/c/mbHY1UY3BaM/m/hSpmRzk-AgAJ\"}, {\"url\": \"https://pkg.go.dev/vuln/GO-2022-1095\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Due to unsanitized NUL values, attackers may be able to maliciously set environment variables on Windows. In syscall.StartProcess and os/exec.Cmd, invalid environment variable values containing NUL values are not properly checked for. A malicious environment variable value can exploit this behavior to set a value for a different environment variable. For example, the environment variable string \\\"A=B\\\\x00C=D\\\" sets the variables \\\"A=B\\\" and \\\"C=D\\\".\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-158: Improper Neutralization of Null Byte or NUL Character\"}]}], \"providerMetadata\": {\"orgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"shortName\": \"Go\", \"dateUpdated\": \"2023-06-12T19:12:49.198Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-41716\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-10-30T13:59:43.967Z\", \"dateReserved\": \"2022-09-28T17:00:06.607Z\", \"assignerOrgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"datePublished\": \"2022-11-02T15:28:19.574Z\", \"requesterUserId\": \"7d08541a-cd0a-42e2-8f81-76e6ceb65fc3\", \"assignerShortName\": \"Go\"}",
      "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.