#VU80681 Improper Authentication in CommonCryptoLib - CVE-2023-40309

Vulnerability identifier: #VU80681

Vulnerability risk: High

CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-40309

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CommonCryptoLib
Universal components / Libraries / Libraries used by multiple products

Vendor: SAP

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in SAP CommonCryptoLib. A remote attacker can bypass authentication process and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CommonCryptoLib: 8

---

External links
https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html?september2023

---

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.