CVE-2018-8753 describes a medium-severity vulnerability in the IKEv1 implementation of Clavister cOS Core versions prior to 11.00.11, 11.20.06, and 12.00.09. This flaw allows remote attackers to decrypt RSA-encrypted nonces through a Bleichenbacher attack, potentially compromising confidentiality. The attack has high complexity but requires no user interaction, and while it impacts confidentiality, it does not affect integrity or availability. There is no evidence of active exploitation, public exploit code, or inclusion in the CISA KEV catalog, though it has garnered some community discussion and media coverage due to its cryptographic nature and broader implications for IKEv1.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 11.00.11CPE matchmatch criteria | cpe:2.3:a:clavister:cos_core:*:*:*:*:*:*:*:* | ||
>= 11.20.00, < 11.20.06CPE matchmatch criteria | cpe:2.3:a:clavister:cos_core:*:*:*:*:*:*:*:* | ||
>= 12.00.00, < 12.00.09CPE matchmatch criteria | cpe:2.3:a:clavister:cos_core:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.