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vulnrichmentCiscoVULNRICHMENT:CVE-2024-20315
HistoryMar 13, 2024 - 4:45 p.m.

CVE-2024-20315

2024-03-1316:45:58
cisco
github.com
3
cisco ios xr
acl bypass
mpls interfaces
remote attacker
unauthenticated
vulnerability

CVSS3

5.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

AI Score

7

Confidence

Low

SSVC

Exploitation

none

Automatable

yes

Technical Impact

partial

A vulnerability in the access control list (ACL) processing on MPLS interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL.

This vulnerability is due to improper assignment of lookup keys to internal interface contexts. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to access resources behind the affected device that were supposed to be protected by a configured ACL.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:o:cisco:ios_xr_software:-:*:*:*:*:*:*:*"
    ],
    "vendor": "cisco",
    "product": "ios_xr_software",
    "versions": [
      {
        "status": "affected",
        "version": "7.9.1"
      },
      {
        "status": "affected",
        "version": "7.9.2"
      },
      {
        "status": "affected",
        "version": "7.10.1"
      }
    ],
    "defaultStatus": "unknown"
  }
]

CVSS3

5.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

AI Score

7

Confidence

Low

SSVC

Exploitation

none

Automatable

yes

Technical Impact

partial

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