CVE-2024-20303 (GCVE-0-2024-20303)

Vulnerability from cvelistv5 – Published: 2024-03-27 17:00 – Updated: 2024-08-01 21:59
VLAI?
Summary
A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper management of mDNS client entries. An attacker could exploit this vulnerability by connecting to the wireless network and sending a continuous stream of specific mDNS packets. A successful exploit could allow the attacker to cause the wireless controller to have high CPU utilization, which could lead to access points (APs) losing their connection to the controller and result in a DoS condition.
Severity ?
7.4 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Cisco Cisco IOS XE Software Affected: 17.2.1
Affected: 17.2.1r
Affected: 17.2.1a
Affected: 17.2.1v
Affected: 17.2.2
Affected: 17.2.3
Affected: 17.3.1
Affected: 17.3.2
Affected: 17.3.3
Affected: 17.3.1a
Affected: 17.3.1w
Affected: 17.3.2a
Affected: 17.3.1x
Affected: 17.3.1z
Affected: 17.3.4
Affected: 17.3.5
Affected: 17.3.4a
Affected: 17.3.6
Affected: 17.3.4b
Affected: 17.3.4c
Affected: 17.3.5a
Affected: 17.3.5b
Affected: 17.3.7
Affected: 17.3.8
Affected: 17.3.8a
Affected: 17.4.1
Affected: 17.4.2
Affected: 17.4.1a
Affected: 17.4.1b
Affected: 17.4.2a
Affected: 17.5.1
Affected: 17.5.1a
Affected: 17.6.1
Affected: 17.6.2
Affected: 17.6.1w
Affected: 17.6.1a
Affected: 17.6.1x
Affected: 17.6.3
Affected: 17.6.1y
Affected: 17.6.1z
Affected: 17.6.3a
Affected: 17.6.4
Affected: 17.6.1z1
Affected: 17.6.5
Affected: 17.6.5a
Affected: 17.7.1
Affected: 17.7.1a
Affected: 17.7.1b
Affected: 17.7.2
Affected: 17.10.1
Affected: 17.10.1a
Affected: 17.10.1b
Affected: 17.8.1
Affected: 17.8.1a
Affected: 17.9.1
Affected: 17.9.1w
Affected: 17.9.2
Affected: 17.9.1a
Affected: 17.9.1x
Affected: 17.9.1y
Affected: 17.9.3
Affected: 17.9.2a
Affected: 17.9.1x1
Affected: 17.9.3a
Affected: 17.9.1y1
Affected: 17.11.1
Affected: 17.11.1a
Affected: 17.11.99SW
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condition.\\r\\n\\r This vulnerability is due to improper management of mDNS client entries. An attacker could exploit this vulnerability by connecting to the wireless network and sending a continuous stream of specific mDNS packets. A successful exploit could allow the attacker to cause the wireless controller to have high CPU utilization, which could lead to access points (APs) losing their connection to the controller and result in a DoS condition.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-459\", \"description\": \"Incomplete Cleanup\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2024-03-27T17:00:37.075Z\"}}}",
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Sightings

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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.