Vulnerability Name:

CVE-2021-37531 (CCN-209323)

Assigned:2021-09-14
Published:2021-09-14
Updated:2022-02-02
Summary:SAP NetWeaver Knowledge Management XML Forms versions - 7.10, 7.11, 7.30, 7.31, 7.40, 7.50, contains an XSLT vulnerability which allows a non-administrative authenticated attacker to craft a malicious XSL stylesheet file containing a script with OS-level commands, copy it into a location to be accessed by the system and then create a file which will trigger the XSLT engine to execute the script contained within the malicious XSL file. This can result in a full compromise of the confidentiality, integrity, and availability of the system.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
9.9 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
8.6 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:9.0 High (CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-78
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-37531

Source: MISC
Type: Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/165751/SAP-Enterprise-Portal-XSLT-Injection.html

Source: FULLDISC
Type: Mailing List, Third Party Advisory
20220126 Onapsis Security Advisory 2021-0026: SAP Enterprise Portal - XSLT injection

Source: XF
Type: UNKNOWN
sap-cve202137531-code-exec(209323)

Source: CCN
Type: SAP Web site
SAP Support Note 3081888

Source: MISC
Type: Permissions Required
https://launchpad.support.sap.com/#/notes/3081888

Source: CCN
Type: SAP Security Patch Day - September 2021
SAP Security Patch Day - September 2021

Source: MISC
Type: Vendor Advisory
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405

Vulnerable Configuration:Configuration 1:
  • cpe:/a:sap:netweaver_knowledge_management_xml_forms:7.10:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_knowledge_management_xml_forms:7.11:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_knowledge_management_xml_forms:7.30:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_knowledge_management_xml_forms:7.31:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_knowledge_management_xml_forms:7.40:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_knowledge_management_xml_forms:7.50:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    sap netweaver knowledge management xml forms 7.10
    sap netweaver knowledge management xml forms 7.11
    sap netweaver knowledge management xml forms 7.30
    sap netweaver knowledge management xml forms 7.31
    sap netweaver knowledge management xml forms 7.40
    sap netweaver knowledge management xml forms 7.50