Marvin attack in Go programming language

1) Observable discrepancy

EUVDB-ID: #VU86309

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-45287

CWE-ID: CWE-203 - Observable discrepancy

Exploit availability: No

Description

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

The vulnerability exists due to a timing discrepancy when handling RSA based TLS key exchanges. A remote attacker can perform a Marvin attack and gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Go programming language: 1.0 - 1.19.13

External links

http://go.dev/issue/20654
http://go.dev/cl/326012/26
http://groups.google.com/g/golang-announce/c/QMK8IQALDvA
http://people.redhat.com/~hkario/marvin/
http://pkg.go.dev/vuln/GO-2023-2375
http://security.netapp.com/advisory/ntap-20240112-0005/

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.