Local jump-session takeover via truncated secret validation
Published Oct 12, 2023 · Updated Nov 3, 2025
Authentication bypass in BeyondTrust Privileged Remote Access 22.2.x through 22.4.x allows local users to access jump-item shells. The Access Console's loopback SSH listener accepts a truncated username secret because verification checks character positions but not the supplied length. The external-tools setting must be enabled and a shell jump session active; a same-host user or low-privileged process can guess one character and inherit the jump item's access.
Summary
What happened
Authentication bypass in BeyondTrust Privileged Remote Access 22.2.x through 22.4.x allows local users to access jump-item shells. The Access Console's loopback SSH listener accepts a truncated username secret because verification checks character positions but not the supplied length. The external-tools setting must be enabled and a shell jump session active; a same-host user or low-privileged process can guess one character and inherit the jump item's access.
The record
- CVE
- CVE-2023-23632
- Published
- Oct 12, 2023
- Updated
- Nov 3, 2025
- Vendor
- BeyondTrust
- Product
- Privileged Remote Access
- Classifications
- CWE-287, T1068
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 12, 2023CVE publishedPublication date reported by the CVE source.
- Nov 3, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=22.2x <=22.4x
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Compass Security truncated-secret reproduction procedureproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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