Sap · Kernel · CVE-2021-38162
Name of the Vulnerable Software and Affected Versions:
SAP Web Dispatcher versions 7.49, 7.53, 7.77, 7.81
KRNL64NUC versions 7.22, 7.22EXT, 7.49
KRNL64UC versions 7.22, 7.22EXT, 7.49, 7.53
KERNEL versions 7.22, 7.49, 7.53, 7.77, 7.81, 7.83
Description:
The issue allows an unauthenticated attacker to submit a malicious crafted request over a network to a front-end server, which may result in a back-end server confusing the boundaries of malicious and legitimate messages. This can lead to the back-end server executing a malicious payload, allowing the attacker to read or modify any information on the server or consume server resources, making it temporarily unavailable.
Recommendations:
For SAP Web Dispatcher versions 7.49, 7.53, 7.77, 7.81, update to a version that includes the fix for this issue.
For KRNL64NUC versions 7.22, 7.22EXT, 7.49, update to a version that includes the fix for this issue.
For KRNL64UC versions 7.22, 7.22EXT, 7.49, 7.53, update to a version that includes the fix for this issue.
For KERNEL versions 7.22, 7.49, 7.53, 7.77, 7.81, 7.83, update to a version that includes the fix for this issue.
As a temporary workaround, consider restricting access to the front-end server to minimize the risk of exploitation.