Home/CVE/XFree86 startx command is vulnerable to a symlink attack, allowing local users to create files in restricted directories
CVE

CVE-1999-0433

XFree86 startx command is vulnerable to a symlink attack, allowing local users to create files in restricted directories

XFree86 startx command is vulnerable to a symlink attack, allowing local users to create files in restricted directories, possibly allowing them to gain privileges or cause a denial of service.

MEDIUM · CVSS 4.6 EPSS 0.00172
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  • Public exploit or PoC is available
Sigma rules8 YARA rules0
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Affected Products & Versions

5
xfree86 project x11r6all versions
netbsdall versions
redhat linuxall versions
slackware linuxall versions
suse linuxall versions
⚠

Public Exploits & PoCs

1
localX11R6 3.3.3 - Symlinkverified
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Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productcriticalLinux Reverse Shell Indicator
producthighCommunication To LocaltoNet Tunneling Service Initiated - Linux
producthighPotentially Suspicious Malware Callback Communication - Linux
producthighLinux Crypto Mining Pool Connections
producthighCommunication To Ngrok Tunneling Service - Linux
producthighLinux Crypto Mining Indicators
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Scoring & Timeline

4.6
MEDIUM · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:L/AC:L/Au:N/C:P/I:P/A:P
Published to NVD21 Mar 1999 · 05:00 AM
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0433
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