CVE-2013-5509 is a critical vulnerability affecting the SSL implementation in Cisco Adaptive Security Appliance (ASA) Software versions 9.0 before 9.0(2.6) and 9.1 before 9.1(2). This flaw allows unauthenticated remote attackers to bypass authentication and gain unauthorized VPN or administrative access by presenting a specially crafted X.509 client certificate. With a CVSS score of 10.0, this vulnerability is highly severe due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. Despite its critical nature, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
9.0CPE matchmatch criteria | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.0:*:*:*:*:*:*:* | ||
9.1CPE matchmatch criteria | cpe:2.3:o:cisco:adaptive_security_appliance_software:9.1:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.