Improper Privilege Management in HylaFAX - CVE-2020-15397
Published: July 29, 2020 / Updated: August 5, 2020
Vulnerability identifier: #VU32880
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-15397
CWE-ID: CWE-269
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Hylafax.org
Affected software:
HylaFAX
HylaFAX
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
HylaFAX+ through 7.0.2 and HylaFAX Enterprise have scripts that execute binaries from directories writable by unprivileged users (e.g., locations under /var/spool/hylafax that are writable by the uucp account). This allows these users to execute code in the context of the user calling these binaries (often root).
How to mitigate CVE-2020-15397
Install updates from vendor's website.