Spoofing attack in firefox (Alpine package)

1) Spoofing attack

EUVDB-ID: #VU46963

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-15677

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to way Firefox displays name of the data origin when downloading files. A remote attacker can spoof origin of the downloaded file and display the name of the intermediate website instead of the original source name.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack but requires that the spoofed website has an open redirect vulnerability.

Mitigation

Install update from vendor's website.

Vulnerable software versions

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

CPE2.3

• cpe:2.3:a:alpine:firefox_alpine_package:60.0.1-r0:*:*:*:*:alpine_linux:*:3.8
• cpe:2.3:a:alpine:firefox_alpine_package:68.0.2-r0:*:*:*:*:alpine_linux:*:3.10
• cpe:2.3:a:alpine:firefox_alpine_package:69.0.3-r0:*:*:*:*:alpine_linux:*:3.10

External links

https://git.alpinelinux.org/aports/commit/?id=352089c9e64ae440e318f91274b6fbe64f3c6b13
https://git.alpinelinux.org/aports/commit/?id=3438f65660550f31484251e11f7227972f800ba2

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.