Information disclosure in thunderbird (Alpine package)



Published: 2021-01-10
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-35111
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
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thunderbird (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU49022

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-35111

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to the proxy.onRequest API does not use proxy when viewing source code of the web application. A remote attacker, who controls the web server can obtain user's real IP address, if the user decides to view the web application source code while behind a proxy server.

Mitigation

Install update from vendor's website.

Vulnerable software versions

thunderbird (Alpine package): 78.5.1-r0

External links

http://git.alpinelinux.org/aports/commit/?id=beb8bd9db61e7a8b95bcb3d137eab4f24ac7f937


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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