Security readout for executives and security teams
Plain-English summary
This is an old Linux PAM issue where a person who already has local user access may be able to become root through unsafe temporary-file handling. The public bundle does not identify specific distributions, versions, patches, or exploitation in the wild.
Executive priority
Prioritize this for legacy Linux risk review, not emergency incident response, unless vulnerable systems still permit untrusted local access.
Technical view
CVE-1999-0342 describes local privilege escalation in Linux PAM modules involving temporary files. Available source data is sparse: no CVSS, CWE, confirmed affected versions, or remediation details are provided. KEV status is false, so active exploitation is not established by the supplied evidence.
Likely exposure
Most likely relevant to obsolete or unpatched Linux systems using vulnerable PAM modules. Exposure requires local user access based on the CVE description.
Exploitation context
The supplied sources support local privilege escalation to root, not remote exploitation. There is no cited evidence of active exploitation, public exploit maturity, or affected vendor/version scope.
Researcher notes
The record is too sparse for version-specific conclusions. Treat the root-impact statement as credible, but verify affected package lineage through distribution advisories before declaring exposure or closure.
Mitigation direction
- Check Linux distribution and PAM vendor guidance for this CVE.
- Upgrade PAM packages only through supported vendor channels.
- Replace or isolate unsupported legacy Linux systems.
- Reduce unnecessary local shell access on systems under review.
- Monitor privileged account and PAM package changes.
Validation and detection
- Inventory Linux hosts using PAM, especially legacy systems.
- Confirm each host runs vendor-supported PAM packages.
- Review vendor advisories or changelogs for CVE-1999-0342 coverage.
- Identify systems with untrusted local user access.
- Document unresolved systems for risk acceptance or replacement.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-1999-0342 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0342CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.