Improper Privilege Management in hylafaxplus (Alpine package)



Published: 2020-07-28
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-15397
CWE-ID CWE-269
Exploitation vector Local
Public exploit N/A
Vulnerable software
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hylafaxplus (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper Privilege Management

EUVDB-ID: #VU32880

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-15397

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

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).

Mitigation

Install update from vendor's website.

Vulnerable software versions

hylafaxplus (Alpine package): 7.0.0-r0

External links

http://git.alpinelinux.org/aports/commit/?id=1b1d9aed72f7aacb92529cd86472da2de9dee79c
http://git.alpinelinux.org/aports/commit/?id=2eb46eec7d4837f046d433bb8c9b2740a96297b5
http://git.alpinelinux.org/aports/commit/?id=485b9653ee6333bca062eecf52687bffce8814f5
http://git.alpinelinux.org/aports/commit/?id=5c0fee19a6ea76f5b2b6e1ccaa3a21340271453e
http://git.alpinelinux.org/aports/commit/?id=7f053636d6a5e50dfda6224f8e621678e9a0e026


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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