#VU78680 Improper Interaction Between Multiple Correctly-Behaving Entities in Go programming language - CVE-2020-29510

Vulnerability identifier: #VU78680

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-29510

CWE-ID: CWE-435

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Go programming language
Universal components / Libraries / Scripting languages

Vendor: Google

Description

The vulnerability allows a remote attacker to bypass security restrictions.

The vulnerability exists due to incorrect preserving the semantics of directives during tokenization round-trips. A remote unauthenticated attacker can craft inputs that behave in conflicting ways during different stages of processing in affected downstream applications.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Go programming language: before 1.15.1, 1.15.1

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External links
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md
https://security.netapp.com/advisory/ntap-20210129-0006/

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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.