Input validation error in firefox (Alpine package)

1) Input validation error

EUVDB-ID: #VU25855

Risk: Low

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-6811

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary OS commands.

The vulnerability exists due to insufficient validation of user-supplied input copied into buffer via the 'Copy as cURL' feature of Devtools' network tab. A remote attacker can trick the victim into using the 'Copy as cURL' feature to copy malicious data into buffer and later insert them into a terminal window.

Successful exploitation of the vulnerability may result in OS command execution.

Mitigation

Install update from vendor's website.

Vulnerable software versions

firefox (Alpine package): 73.0.1-r1

CPE2.3

• cpe:2.3:a:alpine:firefox_alpine_package:73.0.1-r1:*:*:*:*:alpine_linux:*:3.11

External links

https://git.alpinelinux.org/aports/commit/?id=559ca01ce273111fa46352af60e88d74c657c7f5
https://git.alpinelinux.org/aports/commit/?id=1d258f723c31c630b8159e94a980ef430a9ea27b
https://git.alpinelinux.org/aports/commit/?id=82e6adffb8c262ce3e9453fbbe8e7fd2406bc48f
https://git.alpinelinux.org/aports/commit/?id=a16f83f7141a8f92c825dbe6822ff641ad8fa846
https://git.alpinelinux.org/aports/commit/?id=672f75ca5f5562f95ab35778287af25da1b99013

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.