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



Published: 2020-04-07
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-6823
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: #VU26651

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-6823

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect processing of extension permissions. A malicious extension could have called browser.identity.launchWebAuthFlow, controlling the redirect_uri, and through the Promise returned, obtain the Auth code and gain access to the user's account at the service provider.

Mitigation

Install update from vendor's website.

Vulnerable software versions

firefox (Alpine package): 68.0.2-r0 - 74.0.1-r0

External links

http://git.alpinelinux.org/aports/commit/?id=3f24b0ed71ac2a532796e4f065c755d1e92a6858


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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