Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Nx-Os | 5.0\(2\) |
| Cisco | Nexus 5000 | All versions |
| Cisco | Nexus 3000 | All versions |
Related Weaknesses (CWE)
References
- http://secunia.com/advisories/45883
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080b9250c.sVendor Advisory
- http://www.securitytracker.com/id?1026019
- http://secunia.com/advisories/45883
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080b9250c.sVendor Advisory
- http://www.securitytracker.com/id?1026019
FAQ
What is CVE-2011-2581?
CVE-2011-2581 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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...
How severe is CVE-2011-2581?
CVE-2011-2581 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-2581?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Nx-Os, Cisco Nexus 5000, Cisco Nexus 3000.