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CVE-2020-35458

32
FAUCET Score

CVE-2020-35458 is a critical Ruby shell code injection vulnerability affecting ClusterLabs Hawk versions 2.x through 2.3.0-x. Unauthenticated remote attackers can exploit this flaw via the hawk_remember_me_id parameter in the login_from_cookie cookie during the user logout routine, leading to code execution as the 'hauser' user. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation, Metasploit, Nuclei, or ExploitDB modules, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
2.2.0-12CPE matchmatch criteria
cpe:2.3:a:clusterlabs:hawk:2.2.0-12:*:*:*:*:*:*:*
2.3.0-12CPE matchmatch criteria
cpe:2.3:a:clusterlabs:hawk:2.3.0-12:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.33%
Probability of exploitation in next 30 days
EPSS Percentile
91.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0533 is in the 86th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

bugzilla.suse.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
github.com / ClusterLabs/hawk/releases
Release NotesThird Party Advisory
openwall.com / lists/oss-security/2021/01/12/3
Mailing ListPatchThird Party Advisory
openwall.com / lists/oss-security/2021/01/12/3
Mailing ListPatchThird Party Advisory