VAR-201406-0311
Vulnerability from variot - Updated: 2025-04-13 23:29The HSRP implementation in Cisco NX-OS 6.2(2a) and earlier allows remote attackers to bypass authentication and cause a denial of service (group-member state modification and traffic blackholing) via malformed HSRP packets, aka Bug ID CSCup11309. Vendors have confirmed this vulnerability Bug ID CSCup11309 It is released as.Malformed by a third party HSRP Authentication is avoided and service operation is interrupted via packets. ( Group member state changes and traffic black holes ) There is a possibility of being put into a state. Cisco NX-OS is a data center-level operating system. An attacker could exploit this vulnerability to bypass authentication and convert the status of a group member to SPEAK, causing a denial of service. An attacker can leverage this issue to cause a denial-of-service condition; denying service to legitimate users. This issue is being tracked by Cisco Bug ID CSCup11309
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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.
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