Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2005-1111

Improper Link Resolution Before File Access ('Link Following')

Published: May 02, 2005 | Modified: Apr 03, 2025
CVSS 3.x
4.7
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS 2.x
3.7 LOW
AV:L/AC:H/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2005-1111
CWEhttps://cwe.mitre.org/data/definitions/59.html

Race condition in cpio 2.6 and earlier allows local users to modify permissions of arbitrary files via a hard link attack on a file while it is being decompressed, whose permissions are changed by cpio after the decompression is complete.

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

NameVendorStart VersionEnd Version
CpioGnu*2.6 (including)
Red Hat Enterprise Linux 3RedHatcpio-0:2.5-4.RHEL3*
Red Hat Enterprise Linux 4RedHatcpio-0:2.5-8.RHEL4*
Red Hat Enterprise Linux AS (Advanced Server) version 2.1RedHat*
Red Hat Enterprise Linux ES version 2.1RedHat*
Red Hat Enterprise Linux WS version 2.1RedHat*
Red Hat Linux Advanced Workstation 2.1RedHat*
CpioUbuntudapper*
CpioUbuntudevel*
CpioUbuntuedgy*
CpioUbuntufeisty*

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

References

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