VulnerabilityModified

CVE-2021-38162

CRITICAL 9.4EPSS 2.74%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

SAP Web Dispatcher versions - 7.49, 7.53, 7.77, 7.81, KRNL64NUC - 7.22, 7.22EXT, 7.49, KRNL64UC -7.22, 7.22EXT, 7.49, 7.53, KERNEL - 7.22, 7.49, 7.53, 7.77, 7.81, 7.83 processes allow an unauthenticated attacker to submit a malicious crafted request over a network to a front-end server which may, over several attempts, result in a back-end server confusing the boundaries of malicious and legitimate messages. This can result in the back-end server executing a malicious payload which can be used to read or modify any information on the server or consume server resources making it temporarily unavailable.

CVSS 3.1: 9.4 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS: 2.74% probability · 85th percentile
CISA KEV: Not listed
Weakness: CWE-444
Affected: sap/web dispatcher
Source: cna@sap.com

References

http://packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2022/May/3Exploit, Mailing List, Third Party Advisory
https://launchpad.support.sap.com/#/notes/3080567Permissions Required
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405Vendor Advisory
http://packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2022/May/3Exploit, Mailing List, Third Party Advisory
https://launchpad.support.sap.com/#/notes/3080567Permissions Required
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.