Home/CVE/Portage before 2.0.50-r3 allows local users to overwrite arbitrary files via a hard link attack on the lockfiles.
CVE

CVE-2004-1901

Portage before 2.0.50-r3 allows local users to overwrite arbitrary files via a hard link attack on the lockfiles.

Portage before 2.0.50-r3 allows local users to overwrite arbitrary files via a hard link attack on the lockfiles.

MEDIUM · CVSS 5.5 EPSS 0.001
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules8 YARA rules0
⬡

Weakness Classification

CWE-59Improper Link Resolution Before File Access ('Link Following')
CWE-59Improper Link Resolution Before File Access ('Link Following')
▤

Affected Products & Versions

3
gentoo portage< 2.0.50
gentoo portageall versions
gentoo linuxall versions
◈

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
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD31 Dec 2004 · 05:00 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://secunia.com/advisories/11305Broken LinkPatch
http://security.gentoo.org/glsa/glsa-200404-01.xmlVendor Advisory
http://www.securityfocus.com/bid/10060Broken LinkPatchThird Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/15754Third Party AdvisoryVDB Entry
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