github - ghsa-cqp7-cmgp-m73g

GHSA-CQP7-CMGP-M73G

Vulnerability from github – Published: 2025-03-12 18:32 – Updated: 2025-03-12 18:32

Details

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

This vulnerability exists because certain packets are handled incorrectly when they are received on an ingress interface on one line card and destined out of an egress interface on another line card where the egress ACL is configured. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass an egress ACL on the affected device. For more information about this vulnerability, see the section of this advisory. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Severity ?

5.8 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-20145"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-12T16:15:22Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the access control list (ACL) processing in the egress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL.\n\nThis vulnerability exists because certain packets are handled incorrectly when they are received on an ingress interface on one line card and destined out of an egress interface on another line card where the egress ACL is configured. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass an egress ACL on the affected device.\nFor more information about this vulnerability, see the  section of this advisory.\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.",
  "id": "GHSA-cqp7-cmgp-m73g",
  "modified": "2025-03-12T18:32:52Z",
  "published": "2025-03-12T18:32:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20145"
    },
    {
      "type": "WEB",
      "url": "https://blog.apnic.net/2024/09/02/crafting-endless-as-paths-in-bgp"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-modular-ACL-u5MEPXMm"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-20145 (GCVE-0-2025-20145)

Vulnerability from cvelistv5 – Published: 2025-03-12 16:12 – Updated: 2025-03-21 20:32

Summary

A vulnerability in the access control list (ACL) processing in the egress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability exists because certain packets are handled incorrectly when they are received on an ingress interface on one line card and destined out of an egress interface on another line card where the egress ACL is configured. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass an egress ACL on the affected device. For more information about this vulnerability, see the section of this advisory. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Severity ?

5.8 (Medium)


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

CWE

CWE-264 - Permissions, Privileges, and Access Control

Assigner

cisco

References

URL

Tags

	https://sec.cloudapps.cisco.com/security/center/c…
	https://blog.apnic.net/2024/09/02/crafting-endles…

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XR Software	Affected: 6.5.3 Affected: 6.5.2 Affected: 6.5.92 Affected: 6.5.1 Affected: 6.6.2 Affected: 7.0.1 Affected: 6.6.25 Affected: 6.6.1 Affected: 6.5.93 Affected: 7.1.1 Affected: 7.0.90 Affected: 6.6.3 Affected: 7.0.2 Affected: 7.2.1 Affected: 7.1.2 Affected: 7.0.11 Affected: 7.0.12 Affected: 7.0.14 Affected: 6.6.4 Affected: 7.2.12 Affected: 7.3.1 Affected: 7.4.1 Affected: 7.2.2 Affected: 7.3.15 Affected: 7.3.16 Affected: 7.3.2 Affected: 7.5.1 Affected: 7.6.1 Affected: 7.5.2 Affected: 7.8.1 Affected: 7.5.12 Affected: 7.7.1 Affected: 7.3.3 Affected: 7.4.2 Affected: 7.3.4 Affected: 7.6.2 Affected: 7.5.3 Affected: 7.7.2 Affected: 7.9.1 Affected: 7.10.1 Affected: 7.8.2 Affected: 7.5.4 Affected: 7.8.22 Affected: 7.7.21 Affected: 7.9.2 Affected: 7.3.5 Affected: 7.5.5 Affected: 7.11.1 Affected: 7.10.2 Affected: 24.1.1 Affected: 7.3.6 Affected: 7.11.2 Affected: 24.2.1 Affected: 24.1.2 Affected: 24.2.11 Affected: 24.3.1 Affected: 24.4.1 Affected: 24.2.2 Affected: 7.11.21 Affected: 24.2.20 Affected: 24.3.2

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-20145",
                "options": [
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                    "Exploitation": "none"
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-21T20:32:16.967308Z",
                "version": "2.0.3"
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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            },
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              "status": "affected",
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              "status": "affected",
              "version": "6.5.92"
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              "status": "affected",
              "version": "6.6.2"
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              "status": "affected",
              "version": "7.0.2"
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              "status": "affected",
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              "version": "6.6.4"
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              "status": "affected",
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            {
              "status": "affected",
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              "version": "7.3.15"
            },
            {
              "status": "affected",
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              "status": "affected",
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            {
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              "version": "7.5.1"
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
              "version": "7.7.2"
            },
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              "status": "affected",
              "version": "7.9.1"
            },
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              "status": "affected",
              "version": "7.10.1"
            },
            {
              "status": "affected",
              "version": "7.8.2"
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            {
              "status": "affected",
              "version": "7.5.4"
            },
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              "status": "affected",
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              "status": "affected",
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            {
              "status": "affected",
              "version": "7.9.2"
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              "status": "affected",
              "version": "7.3.5"
            },
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              "status": "affected",
              "version": "7.5.5"
            },
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              "status": "affected",
              "version": "7.11.1"
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            {
              "status": "affected",
              "version": "7.10.2"
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            {
              "status": "affected",
              "version": "24.1.1"
            },
            {
              "status": "affected",
              "version": "7.3.6"
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            {
              "status": "affected",
              "version": "7.11.2"
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            {
              "status": "affected",
              "version": "24.2.1"
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            {
              "status": "affected",
              "version": "24.1.2"
            },
            {
              "status": "affected",
              "version": "24.2.11"
            },
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              "status": "affected",
              "version": "24.3.1"
            },
            {
              "status": "affected",
              "version": "24.4.1"
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              "status": "affected",
              "version": "24.2.2"
            },
            {
              "status": "affected",
              "version": "7.11.21"
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              "status": "affected",
              "version": "24.2.20"
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              "status": "affected",
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      "descriptions": [
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          "lang": "en",
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        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
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      },
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        {
          "name": "cisco-sa-modular-ACL-u5MEPXMm",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-modular-ACL-u5MEPXMm"
        },
        {
          "name": "Crafting endless AS-PATHS in BGP",
          "url": "https://blog.apnic.net/2024/09/02/crafting-endless-as-paths-in-bgp/"
        }
      ],
      "source": {
        "advisory": "cisco-sa-modular-ACL-u5MEPXMm",
        "defects": [
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        ],
        "discovery": "INTERNAL"
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      "title": "Cisco IOS XR Software Access Control List Bypass Vulnerability"
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    "dateUpdated": "2025-03-21T20:32:32.526Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted

GHSA-CQP7-CMGP-M73G

CVE-2025-20145 (GCVE-0-2025-20145)

Tags

Sightings

Nomenclature