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CVE Record

CVE-2001-1080: diagrpt in AIX 4.3.x and 5.1 uses the DIAGDATADIR environment variable to find and execute certain programs...

diagrpt in AIX 4.3.x and 5.1 uses the DIAGDATADIR environment variable to find and execute certain programs, which allows local users to gain privileges by modifying the variable to point to a Trojan horse program.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's Takehigh

Analyst readout for executives and security teams

Plain-English summary

This is a local privilege-escalation flaw in IBM AIX diagrpt. On affected AIX 4.3.x and 5.1 systems, a local user could influence where diagrpt looks for helper programs and potentially gain higher privileges. It is mainly a legacy-platform risk.

Executive priority

Prioritize if the organization still runs AIX 4.3.x or 5.1, especially on systems with multiple local users or sensitive workloads. For organizations without legacy AIX, business urgency is low.

Technical view

diagrpt trusts the DIAGDATADIR environment variable when locating and executing certain programs. If a local user can point that variable to a controlled program, the execution context may allow privilege gain. The source bundle identifies AIX 4.3.x and 5.1; detailed CVSS, CWE, and product metadata are incomplete.

Likely exposure

Exposure is most likely on legacy IBM AIX 4.3.x or 5.1 hosts where diagrpt is present and local users can execute it. The provided metadata does not identify newer affected releases or non-AIX products.

Exploitation context

The issue requires local access; it is not described as a remote attack. The bundle does not provide KEV listing or other cited evidence of active exploitation, so active exploitation should not be assumed.

Researcher notes

The public metadata is sparse: no CVSS vector, CWE, or detailed affected CPEs are supplied. Treat the core issue as environment-variable trust leading to local privilege escalation, and avoid assuming exploit maturity beyond the cited vulnerability descriptions.

Mitigation direction

  • Inventory AIX 4.3.x and 5.1 systems and confirm whether diagrpt is present.
  • Review IBM advisory MSS-OAR-E01-2001:225.1 for vendor-supported remediation.
  • Apply IBM-provided fixes or configuration guidance where available.
  • Restrict local shell access on legacy AIX systems until remediation is confirmed.
  • Retire or isolate unsupported AIX hosts that cannot be remediated.

Validation and detection

  • Check affected hosts for AIX release 4.3.x or 5.1.
  • Confirm whether diagrpt exists and is executable by local users.
  • Review system package and maintenance history against IBM advisory guidance.
  • Verify local account access is limited to trusted users.
  • Document any unsupported hosts requiring isolation or retirement.
Prepared
Confidence
medium
Sources
5

Based on public source material and reviewed before publication.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.