CVE-2021-34696

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Summary

CVECVE-2021-34696
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-09-23 03:15:00 UTC
Updated2023-11-07 03:36:00 UTC
DescriptionA vulnerability in the access control list (ACL) programming of Cisco ASR 900 and ASR 920 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to incorrect programming of hardware when an ACL is configured using a method other than the configuration CLI. 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 ACL on the affected device.

Risk And Classification

Problem Types: NVD-CWE-Other

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco Asr 902 - All All All
Hardware Cisco Asr 903 - All All All
Hardware Cisco Asr 907 - All All All
Hardware Cisco Asr 920-10sz-pd - All All All
Hardware Cisco Asr 920-10sz-pd R - All All All
Hardware Cisco Asr 920-12cz-a - All All All
Hardware Cisco Asr 920-12cz-a R - All All All
Hardware Cisco Asr 920-12cz-d - All All All
Hardware Cisco Asr 920-12cz-d R - All All All
Hardware Cisco Asr 920-12sz-im - All All All
Hardware Cisco Asr 920-12sz-im R - All All All
Hardware Cisco Asr 920-24sz-im - All All All
Hardware Cisco Asr 920-24sz-im R - All All All
Hardware Cisco Asr 920-24sz-m - All All All
Hardware Cisco Asr 920-24sz-m R - All All All
Hardware Cisco Asr 920-24tz-m - All All All
Hardware Cisco Asr 920-24tz-m R - All All All
Hardware Cisco Asr 920-4sz-a - All All All
Hardware Cisco Asr 920-4sz-a R - All All All
Hardware Cisco Asr 920-4sz-d - All All All
Hardware Cisco Asr 920-4sz-d R - All All All
Hardware Cisco Asr 920u-12sz-im - All All All
Operating System Cisco Ios Xe All All All All

References

ReferenceSourceLinkTags
Cisco ASR 900 and ASR 920 Series Aggregation Services Routers Access Control List Bypass Vulnerability CISCO tools.cisco.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 317063 Cisco ASR 900 and ASR 920 Series Aggregation Services Routers (ASR) Access Control List Bypass Vulnerability (cisco-sa-asr900acl-UeEyCxkv)
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