PT-2021-21986 · Sap · Sap Commoncryptolib

Yvan Genuer · Published 2021-09-14 · Updated 2022-01-28 · CVE-2021-38177

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: SAP CommonCryptoLib versions 8.5.38 or lower

Description: The issue is related to a null pointer dereference vulnerability. When an unauthenticated attacker sends crafted malicious data in the HTTP requests over the network, it causes the SAP application to crash. This has a high impact on the availability of the SAP system.

Recommendations: For SAP CommonCryptoLib versions 8.5.38 or lower, update to a version higher than 8.5.38 to resolve the issue. As a temporary workaround, consider restricting access to the SAP application to minimize the risk of exploitation.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2021-38177

Affected Products

Sap Commoncryptolib

References · 9

• https://osv.dev/vulnerability/CVE-2021-38177 · Vendor Advisory
• https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-38177 · Security Note
• https://launchpad.support.sap.com/#/notes/3051787 · Note
• https://t.me/isacarusec/4439 · Telegram Post
• http://seclists.org/fulldisclosure/2022/Jan/74 · Note
• http://packetstormsecurity.com/files/165749/SAP-CommonCryptoLib-Null-Pointer-Dereference.html · Note
• https://t.me/cibsecurity/28805 · Telegram Post
• https://t.me/true_secator/2111 · Telegram Post