CVE-2018-15836 is a high-severity vulnerability affecting Openswan before version 2.6.50.1, specifically in the verify_signed_hash() function. It allows a remote attacker to forge IKEv2 signatures when RAW RSA keys and small public exponents are used, due to improper padding string verification during PKCS#1 v1.5 signature verification. The vulnerability has a CVSS score of 7.5, indicating a high impact on integrity with low attack complexity and no user interaction required. Despite its severity, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.6.50.1CPE matchmatch criteria | cpe:2.3:a:xelerance:openswan:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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.