Permissions, Privileges, and Access Controls in firefox (Alpine package)



Published: 2020-08-30
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-15663
CWE-ID CWE-264
Exploitation vector Local
Public exploit N/A
Vulnerable software
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firefox (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) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU46015

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-15663

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due Mozilla Maintenance Service does not check if the updater.exe file has a valid signature before executing it with elevated privileges. A local user with ability to replace the updater.exe file file can execute arbitrary code with SYSTEM privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

firefox (Alpine package): 60.0.1-r0 - 79.0-r1

External links

http://git.alpinelinux.org/aports/commit/?id=ddfe4a2c072f3650ea79b45cffb9f6ac8a154cfb
http://git.alpinelinux.org/aports/commit/?id=ec7853eade2b7d671bc10bb748c69725d946a4fa


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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