CVE-2021-27631

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server), versions - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method EnqConvUniToSrvReq() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.
Overview
  • CVE ID
  • CVE-2021-27631
  • Assigner
  • cna@sap.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-06-09T14:15:09
  • Last Modified Date
  • 2022-10-31T14:45:10
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:sap:netweaver_as_abap:kernel_7.22:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:kernel_7.49:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:kernel_7.53:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:kernel_7.73:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:kernel_7.77:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:kernel_7.81:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:kernel_7.82:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:kernel_7.83:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:kernel_8.04:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:krnl32nuc_7.22:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:krnl32nuc_7.22ext:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:krnl64nuc_7.22:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:krnl64nuc_7.22ext:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:krnl64nuc_7.49:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_7.22:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_7.22ext:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_7.49:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_7.53:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_7.73:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_8.04:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://launchpad.support.sap.com/#/notes/3020104 Permissions Required Vendor Advisory
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 Vendor Advisory
http://seclists.org/fulldisclosure/2021/Oct/29 Mailing List Patch Third Party Advisory
http://packetstormsecurity.com/files/164595/SAP-NetWeaver-ABAP-Enqueue-Memory-Corruption.html Patch Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-27631
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27631
History
Created Old Value New Value Data Type Notes
2022-05-10 06:48:26 Added to TrackCVE
2022-12-05 03:57:19 2021-06-09T14:15Z 2021-06-09T14:15:09 CVE Published Date updated
2022-12-05 03:57:19 2022-10-31T14:45:10 CVE Modified Date updated
2022-12-05 03:57:20 Analyzed Vulnerability Status updated