CVE-2019-1687 — Improper Input Validation in Cisco Adaptive Security Appliance Software

CWE-20 — Improper Input Validation4 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.2%
top 56.32%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Cisco Adaptive Security Appliance SoftwareCisco Adaptive Security Appliance SoftwareCisco Firepower Threat Defense
Timeline
PublishedMay 3
Latest updateMay 24

Description

A vulnerability in the TCP proxy functionality for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to restart unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to an error in TCP-based packet inspection, which could cause the TCP packet to have an invalid Layer 2 (L2)-formatted header. An attacker could exploit this vulnerability by sending…

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 Packages3 packages

▶CVEListV5cisco/cisco_adaptive_security_appliance_softwareunspecified — 9.4.4.34+2
▶NVDcisco/firepower_threat_defense6.0.0 — 6.2.3.12+1

🔴Vulnerability Details

2
GHSA
GHSA-f5pm-8fcr-v6cq: A vulnerability in the TCP proxy functionality for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software↗2022-05-24
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CVEList
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software TCP Proxy Denial of Service Vulnerability↗2019-05-03
▶

📋Vendor Advisories

1
Cisco
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software TCP Proxy Denial of Service Vulnerability↗2019-05-01
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CVE-2019-1687 — Improper Input Validation in Cisco | cvebase