SAP Web Dispatcher Kernel update for CommonCryptoLib

Published: 2023-09-22

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-40308 CVE-2023-40309
CWE-ID	CWE-119 CWE-287
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	SAP Web Dispatcher Kernel Server applications / Application servers
Vendor	SAP

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU80691

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-40308

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in SAP CommonCryptoLib. A remote non-authenticated attacker can send specially crafted input to the application that uses the affected library, trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SAP Web Dispatcher Kernel: 7.22 - 7.89

CPE2.3

External links

http://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.

2) Improper Authentication

EUVDB-ID: #VU80681

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-40309

CWE-ID: CWE-287 - Improper Authentication