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CVE-2019-19191

Date: November 21, 2019

Shibboleth Service Provider (SP) 3.x before 3.1.0 shipped a spec file that calls chown on files in a directory controlled by the service user (the shibd account) after installation. This allows the user to escalate to root by pointing symlinks to files such as /etc/shadow.

Severity Score

Related Resources (6)

https://issues.shibboleth.net/jira/browse/SSPCPP-874
https://nvd.nist.gov/vuln/detail/CVE-2019-19191
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00017.html
https://security-tracker.debian.org/tracker/CVE-2019-19191
https://bugzilla.suse.com/show_bug.cgi?id=1157471
https://www.mend.io/vulnerability-database/CVE-2019-19191

Severity Score

Weakness Type (CWE)

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): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

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

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