Riskcovery

CVE-2023-20168

State
Published
Severity
7.1 High
Published
Aug 23, 2023
Updated
Aug 2, 2024
Reserved
Oct 27, 2022

Read the record on cve.org

Description

A vulnerability in TACACS+ and RADIUS remote authentication for Cisco NX-OS Software could allow an unauthenticated, local attacker to cause an affected device to unexpectedly reload. This vulnerability is due to incorrect input validation when processing an authentication attempt if the directed request option is enabled for TACACS+ or RADIUS. An attacker could exploit this vulnerability by entering a crafted string at the login prompt of an affected device. A successful exploit could allow the attacker to cause the affected device to unexpectedly reload, resulting in a denial of service (DoS) condition.

Scores

CVSSScoreVectorSource
3.17.1 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hcisco

Weaknesses

  • CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

ProductVersions
Cisco NX-OS SoftwareCisco
  • 4.2(1)SV1(4)Affected
  • 4.2(1)SV1(4a)Affected
  • 4.2(1)SV1(4b)Affected
  • 4.2(1)SV1(5.1)Affected
  • 4.2(1)SV1(5.1a)Affected
  • 4.2(1)SV1(5.2)Affected
  • 4.2(1)SV1(5.2b)Affected
  • 4.2(1)SV2(1.1)Affected
  • 4.2(1)SV2(1.1a)Affected
  • 4.2(1)SV2(2.1)Affected
  • 4.2(1)SV2(2.1a)Affected
  • 4.2(1)SV2(2.2)Affected
  • 4.2(1)SV2(2.3)Affected
  • 5.2(1)SM1(5.1)Affected
  • 5.2(1)SM1(5.2)Affected
  • 5.2(1)SM1(5.2a)Affected
  • 5.2(1)SM1(5.2b)Affected
  • 5.2(1)SM1(5.2c)Affected
  • 5.2(1)SM3(1.1)Affected
  • 5.2(1)SM3(1.1a)Affected
  • 5.2(1)SM3(1.1b)Affected
  • 5.2(1)SM3(1.1c)Affected
  • 5.2(1)SM3(2.1)Affected
  • 5.2(1)SV3(1.4)Affected
  • 5.2(1)SV3(1.1)Affected
  • and 319 more versions

References

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