CVE-2011-2581
The ACL implementation in Cisco NX-OS 5.0(2) and 5.0(3) before 5.0(3)N2(1) on Nexus 5000 series switches, and NX-OS before 5.0(3)U1(2a) on Nexus 3000 series switches, does not properly handle comments in conjunction with deny statements, which allows…
Does this matter?
Lower severity and a low EPSS score (1.99%). Track it; it rarely justifies an emergency change on its own.
Description
The ACL implementation in Cisco NX-OS 5.0(2) and 5.0(3) before 5.0(3)N2(1) on Nexus 5000 series switches, and NX-OS before 5.0(3)U1(2a) on Nexus 3000 series switches, does not properly handle comments in conjunction with deny statements, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by sending packets, aka Bug IDs CSCto09813 and CSCtr61490.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 1.99% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- cisco/nx-os · cisco/nexus 5000 · cisco/nexus 3000
- Source
- psirt@cisco.com
References
- http://secunia.com/advisories/45883
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080b9250c.shtmlVendor Advisory
- http://www.securitytracker.com/id?1026019
- http://secunia.com/advisories/45883
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080b9250c.shtmlVendor Advisory
- http://www.securitytracker.com/id?1026019
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.