cbcvebase.
CVE-2022-22536
published 2022-02-09

CVE-2022-22536: SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server 7.53 and SAP Web Dispatcher are vulnerable for…

PriorityP198critical10CVSS 3.1
AVNACLPRNUINSCCHIHAH
KEVITWEXPLOIT
CISA Known Exploited Vulnerabilitydue 2022-09-08
Exploited in the wild
EPSS
97.95%
99.9th percentile
SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server 7.53 and SAP Web Dispatcher are vulnerable for request smuggling and request concatenation. An unauthenticated attacker can prepend a victim's request with arbitrary data. This way, the attacker can execute functions impersonating the victim or poison intermediary Web caches. A successful attack could result in complete compromise of Confidentiality, Integrity and Availability of the system.

Affected

48 ranges· showing 25
VendorProductVersion rangeFixed in
sapcontent_server
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapnetweaver_application_server_abap
sapweb_dispatcher
sapweb_dispatcher
sapweb_dispatcher
sapweb_dispatcher
sapweb_dispatcher
sapweb_dispatcher
sapweb_dispatcher

Detection & IOCsextracted from sources · hover to see the quote

path/sap/admin/public/default.html
path/sap/public/bc/ur/Login/assets/corbu/sap_logo.png
path/heapdump/
path/ctc/ConfigServlet
path/sap/public/bc/icf/info
path/sap/bc/webdynpro/sap/appl_soap_management
path/sap/public/bc/icf/logon.html
path/webdynpro/resources/sap.com/tc~lm~config~content/
cookiesaplb_*=(J2EE7364720)7364750
othershodan-query: http.favicon.hash:-266008933
otherfofa-query: icon_hash=-266008933
commandGET {{sap_path}} HTTP/1.1 Host: {{Hostname}} Content-Length: 82646 Connection: keep-alive {{repeat("A", 82642)}} GET / HTTP/1.1 Host: {{Hostname}}
command0\r\n\r\nGET /sap/bc/webdynpro/sap/appl_soap_management HTTP/1.1\r\nHost: 127.0.0.1\r\nX-Forwarded-For: 127.0.0.1\r\nConnection: close\r\n\r\n
  • Detect oversized Content-Length in HTTP requests to SAP paths: a smuggling payload uses Content-Length: 82646 with a body of 82642 'A' characters followed by a second embedded HTTP request.
  • Look for concatenated/smuggled HTTP responses containing 'HTTP/1.0 400 Bad Request', 'HTTP/1.0 500 Internal Server Error', or 'HTTP/1.0 500 Dispatching Error' in a single TCP stream response body — these indicate successful MPI desync exploitation.
  • Monitor for POST requests to /sap/admin/public/default.html with a body beginning with '0\r\n\r\n' followed by an embedded GET request targeting internal loopback paths such as /heapdump/ or /ctc/ConfigServlet — this is the SAPGateBreaker ACL bypass pattern.
  • Network scan detection: Dragos KP-2022-004 includes a detection for traffic associated with scans to identify SAP systems affected by CVE-2022-22536 (CVSSv3 10.0).
  • Use Google dork 'inurl:"/sap/admin/public/default.html"' to identify externally exposed SAP admin interfaces that are prime targets for CVE-2022-22536 exploitation.
  • Indicator of successful exploitation: a status code 200 response for internal SAP endpoints (e.g., /heapdump/) that would normally return 403/404 when accessed directly — compare direct vs. smuggled response codes.
  • ·The Onapsis scanner script is a best-effort detection tool and cannot provide 100% accuracy in identifying vulnerable SAP instances.
  • ·CVE-2022-22536 affects SAP NetWeaver Java or ABAP applications with DEFAULT configurations — non-default hardened deployments may reduce exposure but are not explicitly confirmed safe.
  • ·The ICM component is exposed by default in most SAP deployments because it connects SAP applications to the internet, making the attack surface very broad.
  • ·The exploit uses 'unsafe: true' and 'read-all: true' Nuclei flags, meaning the detection template sends raw/malformed HTTP that may disrupt vulnerable SAP services during scanning.

CVSS provenance

nvdv3.110.0CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C
vulncheck10.0CRITICAL
cisa10.0CRITICAL
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