Improper Verification of Cryptographic Signature in tough library

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU29694

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-6174

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the affected software does not verify the cryptographic signature for data. A remote attacker can bypass implemented security restrictions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

tough: 0.1.0 - 0.7.0

CPE2.3

• cpe:2.3:a:amazon_web_services:tough:0.1.0:*:*:*:*:the_update_framework_tuf:*:*
• cpe:2.3:a:amazon_web_services:tough:0.1.1:*:*:*:*:the_update_framework_tuf:*:*
• cpe:2.3:a:amazon_web_services:tough:0.2.0:*:*:*:*:the_update_framework_tuf:*:*

External links

https://rustsec.org/advisories/RUSTSEC-2020-0024.html
https://github.com/awslabs/tough/security/advisories/GHSA-5q2r-92f9-4m49

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.