CVE-2021-27634

Published on: 06/09/2021 12:00:00 AM UTC

Last Modified on: 11/04/2021 01:03:00 PM UTC

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Certain versions of Netweaver Abap from Sap contain the following vulnerability:

SAP NetWeaver AS for ABAP (RFC Gateway), 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 - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83, 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 ThCpicDtCreate () causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.

  • CVE-2021-27634 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.

CVSS3 Score: 5.9 - MEDIUM

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK HIGH NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE NONE HIGH

CVSS2 Score: 4.3 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK MEDIUM NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
NONE NONE PARTIAL

CVE References

Description Tags Link
Full Disclosure: Onapsis Security Advisory 2021-0018: [Multiple CVEs] Memory Corruption vulnerability in SAP NetWeaver ABAP Gateway service seclists.org
text/html
URL Logo FULLDISC 20211022 Onapsis Security Advisory 2021-0018: [Multiple CVEs] Memory Corruption vulnerability in SAP NetWeaver ABAP Gateway service
SAP Security Patch Day – June 2021 - Product Security Response at SAP - Community Wiki wiki.scn.sap.com
text/html
URL Logo MISC wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999
No Description Provided launchpad.support.sap.com
text/html
URL Logo MISC launchpad.support.sap.com/#/notes/3020209
SAP NetWeaver ABAP Gateway Memory Corruption ≈ Packet Storm packetstormsecurity.com
text/html
URL Logo MISC packetstormsecurity.com/files/164596/SAP-NetWeaver-ABAP-Gateway-Memory-Corruption.html

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationSapNetweaver Abapkernel_7.22AllAllAll
ApplicationSapNetweaver Abapkernel_7.49AllAllAll
ApplicationSapNetweaver Abapkernel_7.53AllAllAll
ApplicationSapNetweaver Abapkernel_7.73AllAllAll
ApplicationSapNetweaver Abapkernel_8.04AllAllAll
ApplicationSapNetweaver Abapkrnl32nuc_7.22AllAllAll
ApplicationSapNetweaver Abapkrnl32nuc_7.22extAllAllAll
ApplicationSapNetweaver Abapkrnl64nuc_7.22AllAllAll
ApplicationSapNetweaver Abapkrnl64nuc_7.22extAllAllAll
ApplicationSapNetweaver Abapkrnl64nuc_7.49AllAllAll
ApplicationSapNetweaver Abapkrnl64uc_7.22AllAllAll
ApplicationSapNetweaver Abapkrnl64uc_7.22extAllAllAll
ApplicationSapNetweaver Abapkrnl64uc_7.49AllAllAll
ApplicationSapNetweaver Abapkrnl64uc_7.53AllAllAll
ApplicationSapNetweaver Abapkrnl64uc_7.73AllAllAll
ApplicationSapNetweaver Abapkrnl64uc_8.04AllAllAll
  • cpe:2.3:a:sap:netweaver_abap:kernel_7.22:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:kernel_7.49:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:kernel_7.53:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:kernel_7.73:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:kernel_8.04:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:krnl32nuc_7.22:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:krnl32nuc_7.22ext:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.22:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.22ext:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.49:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.22:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.22ext:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.49:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.53:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.73:*:*:*:*:*:*:*:
  • cpe:2.3:a:sap:netweaver_abap:krnl64uc_8.04:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-27634 : #SAP NetWeaver AS for ABAP RFC Gateway , versions - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.… twitter.com/i/web/status/1… 2021-06-09 14:09:07
Reddit Logo Icon /r/netcve CVE-2021-27634 2021-06-09 14:41:49
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