CVE-2011-2057 — Improper Input Validation in Cisco IOS

CWE-20 — Improper Input Validation3 documents3 sources
Severity
7.5HIGHNVD
EPSS
1.1%
top 21.90%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Cisco IOS
Timeline
PublishedOct 22
Latest updateMay 13

Description

The cat6000-dot1x component in Cisco IOS 12.2 before 12.2(33)SXI7 does not properly handle (1) a loop between a dot1x enabled port and an open-authentication dot1x enabled port and (2) a loop between a dot1x enabled port and a non-dot1x port, which allows remote attackers to cause a denial of service (traffic storm) via unspecified vectors that trigger many Spanning Tree Protocol (STP) Bridge Protocol Data Unit (BPDU) frames, aka Bug ID CSCtq36327.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages1 packages

▶NVDcisco/ios12.2 — 12.2\(33\)sxi7

🔴Vulnerability Details

2
GHSA
GHSA-q6p8-cpxm-w8xp: The cat6000-dot1x component in Cisco IOS 12↗2022-05-13
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CVEList
CVE-2011-2057: The cat6000-dot1x component in Cisco IOS 12↗2011-10-22
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CVE-2011-2057 — Improper Input Validation in Cisco IOS | cvebase