Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2007-5718

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

Published: Oct 30, 2007 | Modified: Apr 09, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4.9 MEDIUM
AV:L/AC:L/Au:N/C:N/I:C/A:N
RedHat/V2
RedHat/V3
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2007-5718
CWEhttps://cwe.mitre.org/data/definitions/59.html

vobcopy 0.5.14 allows local users to append data to an arbitrary file, or create an arbitrary new file, via a symlink attack on the (1) /tmp/vobcopy.bla or (2) /tmp/vobcopy_0.5.14.log temporary file.

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
Debian_linuxDebian3.1 (including)3.1 (including)
Debian_linuxDebian3.1-r1 (including)3.1-r1 (including)
Debian_linuxDebian3.2.4 (including)3.2.4 (including)
Debian_linuxDebian4.0 (including)4.0 (including)
VobcopyUbuntudapper*
VobcopyUbuntudevel*
VobcopyUbuntuedgy*
VobcopyUbuntufeisty*
VobcopyUbuntugutsy*
VobcopyUbuntuhardy*
VobcopyUbuntuintrepid*
VobcopyUbuntujaunty*
VobcopyUbuntukarmic*

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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