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CVE-2020-24332

Date: August 13, 2020

An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges, the creation of the system.data file is prone to symlink attacks. The tss user can be used to create or corrupt existing files, which could possibly lead to a DoS attack.

Language: C

Severity Score

Related Resources (11)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SSDL7COIFCZQMUBNAASNMKMX7W5JUHRD/
http://www.openwall.com/lists/oss-security/2020/08/14/1
https://nvd.nist.gov/vuln/detail/CVE-2020-24332
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SSDL7COIFCZQMUBNAASNMKMX7W5JUHRD/
https://sourceforge.net/p/trousers/mailman/message/37015817/
https://access.redhat.com/security/cve/CVE-2020-24332
https://security-tracker.debian.org/tracker/CVE-2020-24332
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-24332
https://bugzilla.suse.com/show_bug.cgi?id=1164472
https://seclists.org/oss-sec/2020/q2/att-135/tcsd_fixes.patch
https://www.mend.io/vulnerability-database/CVE-2020-24332

Severity Score

Weakness Type (CWE)

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

CWE-59

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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