Cisco IOS tacacs Keyword ACL Bypass (CSCdi36962)

high Nessus Plugin ID 10974


The remote device is missing a vendor-supplied security patch.


The remote device seems to be vulnerable to a flaw in IOS when the keyword 'tacacs-ds' or 'tacacs' is being used in extended ACLs.

This bug can, under very specific circumstances and only with certain IP host implementations, allow unauthorized packets to circumvent a filtering router.

This vulnerability is documented as Cisco Bug ID CSCdi36962.


Plugin Details

Severity: High

ID: 10974

File Name: CSCdi36962.nasl

Version: 1.22

Type: local

Family: CISCO

Published: 6/5/2002

Updated: 6/29/2018

Supported Sensors: Nessus

Risk Information


Risk Factor: Medium

Score: 5.3


Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: SNMP/community, SNMP/sysDesc, CISCO/model

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/31/1995

Reference Information

CVE: CVE-1999-0161

BID: 703