Sterling External Authentication ServerApplication · Ibm

CVE-2023-29261

MEDIUM · 5.5 CVSS v3.1 Published 2023-09-05
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
57/100
Remediation priority · Elevated
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
IBM Sterling Secure Proxy 6.0.3 and 6.1.0 could allow a local user with specific information about the system to obtain privileged information due to inadequate memory clearing during operations. IBM X-Force ID: 252139.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

IBM Sterling Secure Proxy versions 6.0.3 and 6.1.0 contain a vulnerability where local users with specific system knowledge can obtain privileged information due to inadequate memory clearing during operations. This allows sensitive data to potentially remain accessible in memory after processing.

MitigationApply IBM patches for this vulnerability when available. Until then, restrict local access to the system and ensure proper access controls are in place to limit exposure to privileged information.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Sterling External Authentication ServerApplication
Affected:= 6.0.3.0= 6.1.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if IBM Sterling External Authentication Server is installed
    Look for the installation directory (commonly under /opt/ibm or C:\Program Files\IBM), check for process running 'Sterling External Authentication Server' or associated services, or search for common install paths like /opt/ibm/sterling-aas or C:\IBM\SterlingAAS
    Affected if The software is not installed on the system, the vulnerability does not apply
  2. Determine the installed version of IBM Sterling External Authentication Server
    Check the version file in the installation directory, typically found in a version.properties, about.html, or run the product version command if available. Common locations: <install_dir>/products/aas/version.txt or <install_dir>/version.dat
    Affected if The installed version is exactly 6.0.3.0 or 6.1.0; other versions are not affected by this specific CVE
  3. Verify the service is running
    Check if the Sterling External Authentication Server service or process is active. On Linux/Unix: ps aux | grep -i sterling or systemctl status ster*aas. On Windows: check Services console for 'IBM Sterling External Authentication Server' or tasklist for related processes
    Affected if The service is not running, the vulnerability cannot be exploited as there is no active session to extract memory from
  4. Confirm local access to the system
    Verify that untrusted local users have shell or console access to the system where the software runs. Check system user accounts, SSH access, or terminal access permissions
    Affected if Only trusted administrators have local access, the attack surface for this local privilege escalation is reduced but the vulnerable code still exists in the affected versions

The system is affected if IBM Sterling External Authentication Server version 6.0.3.0 or 6.1.0 is installed and running, and untrusted local users can access the system terminal or shell.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply IBM patches for this vulnerability when available. Until then, restrict local access to the system and ensure proper access controls are in place to limit exposure to privileged information.

Fix this in Sterling External Authentication Server Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-29261 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data