Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2008-4191

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

Published: Sep 24, 2008 | Modified: Apr 09, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
6.6 MEDIUM
AV:L/AC:L/Au:N/C:N/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2008-4191
CWEhttps://cwe.mitre.org/data/definitions/59.html

extract-table.pl in Emacspeak 26 and 28 allows local users to overwrite arbitrary files via a symlink attack on the extract-table.csv 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
EmacspeakEmacspeak_inc26.0 (including)26.0 (including)
EmacspeakEmacspeak_inc28.0 (including)28.0 (including)
EmacspeakUbuntudapper*
EmacspeakUbuntufeisty*
EmacspeakUbuntugutsy*
EmacspeakUbuntuhardy*
EmacspeakUbuntuintrepid*
EmacspeakUbuntuupstream*

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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