CVE-2024-29905

Proxy credential theft via delayed permission restriction

Published Apr 9, 2024 · Updated Aug 2, 2024

Credential exposure in DIRAC before 8.0.41 allows local users to read a generated proxy file and assume its delegated privileges. Proxy-writing routines create or truncate the destination under the process umask, write the proxy contents, and only afterward restrict the file to mode 0600. A user with access to the same host must win the sub-millisecond creation window; a successful read permits every action authorized by the original proxy.

CVSS severity8.1
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in DIRAC before 8.0.41 allows local users to read a generated proxy file and assume its delegated privileges. Proxy-writing routines create or truncate the destination under the process umask, write the proxy contents, and only afterward restrict the file to mode 0600. A user with access to the same host must win the sub-millisecond creation window; a successful read permits every action authorized by the original proxy.

The record

CVE
CVE-2024-29905
Published
Apr 9, 2024
Updated
Aug 2, 2024
Vendor
DIRACGrid
Product
DIRAC
Classifications
CWE-668, T1552.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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.

  1. Affected versionversion=< 8.0.41

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

DIRACGrid · DIRACversion=< 8.0.41

Published CVSS scores

8.1GitHubCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-668Exposure of Resource to Wrong Sphere
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

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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