Computer Security
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Cisco Nexus switches protection bypass
updated since 13.09.2011
SecurityVulns ID:11907
Threat Level:
Description:It's possible to bypass ACL limitation. Local code execution.
Affected:CISCO : Cisco MDS 9000
 CISCO : Cisco Nexus 5000
 CISCO : Cisco Nexus 7000
 CISCO : Cisco Nexus 3000
 CISCO : Cisco Nexus 2000
 CISCO : Cisco Nexus 4000
CVE: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 remote attackers to bypass intended access restrictions in opportunistic circumstances by sending packets, aka Bug IDs CSCto09813 and CSCtr61490.)
 CVE-2011-2569 (Cisco Nexus OS (aka NX-OS) 4.2 and 5.0 and Cisco Unified Computing System with software 1.4 and 2.0 do not properly restrict command-line options, which allows local users to gain privileges via unspecified vectors, aka Bug IDs CSCtf40008, CSCtg18363, CSCtr44645, CSCts10195, and CSCts10188.)
Original documentdocumentCISCO, RE: [CVE-2011-2569] Cisco Nexus OS (NX-OS) - Command "injection" / sanitization issues. (31.10.2011)
 document0x9950_(at), [CVE-2011-2569] Cisco Nexus OS (NX-OS) - Command "injection" / sanitization issues. (26.10.2011)
 documentCISCO, Cisco Security Advisory: Cisco Nexus 5000 and 3000 Series Switches Access Control List Bypass Vulnerability (13.09.2011)

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