CVE-2013-5476 — Improper Input Validation in Cisco IOS

CWE-20 — Improper Input Validation4 documents4 sources
Severity
7.8HIGHNVD
EPSS
0.4%
top 37.61%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Cisco IOS
Timeline
PublishedSep 27
Latest updateMay 17

Description

The Zone-Based Firewall (ZFW) feature in Cisco IOS 15.1 through 15.2, when content filtering or HTTP ALG inspection is enabled, allows remote attackers to cause a denial of service (device reload or hang) via crafted IPv4 HTTP traffic, aka Bug ID CSCtx56174.

CVSS vector

AV:N/AC:L/C:N/I:N/A:CExploitability: 10.0 | Impact: 6.9

Affected Packages1 packages

▶NVDcisco/ios15.1, 15.2+1

🔴Vulnerability Details

2
GHSA
GHSA-7w76-v7jx-gcpv: The Zone-Based Firewall (ZFW) feature in Cisco IOS 15↗2022-05-17
▶
CVEList
CVE-2013-5476: The Zone-Based Firewall (ZFW) feature in Cisco IOS 15↗2013-09-27
▶

📋Vendor Advisories

1
Cisco
Cisco IOS Software Zone-Based Firewall and Content Filtering Vulnerability↗2013-09-25
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CVE-2013-5476 — Improper Input Validation in Cisco IOS | cvebase