CVE-2021-27606: Input Validation
First published: Wed Jun 09 2021(Updated: )
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 EncOAMParamStore() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.
Credit: cna@sap.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SAP NetWeaver AS ABAP | =kernel_7.22 | |
| SAP NetWeaver AS ABAP | =kernel_7.49 | |
| SAP NetWeaver AS ABAP | =kernel_7.53 | |
| SAP NetWeaver AS ABAP | =kernel_7.73 | |
| SAP NetWeaver AS ABAP | =kernel_7.77 | |
| SAP NetWeaver AS ABAP | =kernel_7.81 | |
| SAP NetWeaver AS ABAP | =kernel_7.82 | |
| SAP NetWeaver AS ABAP | =kernel_7.83 | |
| SAP NetWeaver AS ABAP | =kernel_8.04 | |
| SAP NetWeaver AS ABAP | =krnl32nuc_7.22 | |
| SAP NetWeaver AS ABAP | =krnl32nuc_7.22ext | |
| SAP NetWeaver AS ABAP | =krnl64nuc_7.22 | |
| SAP NetWeaver AS ABAP | =krnl64nuc_7.22ext | |
| SAP NetWeaver AS ABAP | =krnl64nuc_7.49 | |
| SAP NetWeaver AS ABAP | =krnl64uc_7.22 | |
| SAP NetWeaver AS ABAP | =krnl64uc_7.22ext | |
| SAP NetWeaver AS ABAP | =krnl64uc_7.49 | |
| SAP NetWeaver AS ABAP | =krnl64uc_7.53 | |
| SAP NetWeaver AS ABAP | =krnl64uc_7.73 | |
| SAP NetWeaver AS ABAP | =krnl64uc_8.04 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-27606?
CVE-2021-27606 is a vulnerability in 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 that allows an unauthenticated attacker without specific knowledge of the system to send a spec...
What is the severity of CVE-2021-27606?
CVE-2021-27606 has a severity of high with a CVSS score of 7.5.
How does CVE-2021-27606 affect SAP NetWeaver AS ABAP?
CVE-2021-27606 affects SAP NetWeaver AS ABAP 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.
Are there any known fixes for CVE-2021-27606?
Yes, SAP has released security notes and patches to address the vulnerability. Please refer to the official SAP support portal for the relevant notes and patches.
Where can I find more information about CVE-2021-27606?
You can find more information about CVE-2021-27606 on the official SAP support portal and the SAP Community Network Wiki.
- collector/nvd-index
- agent/references
- agent/weakness
- agent/severity
- agent/author
- agent/description
- agent/type
- agent/event
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/sap
- canonical/sap netweaver as abap
- version/sap netweaver as abap/kernel_7.22
- version/sap netweaver as abap/kernel_7.49
- version/sap netweaver as abap/kernel_7.53
- version/sap netweaver as abap/kernel_7.73
- version/sap netweaver as abap/kernel_7.77
- version/sap netweaver as abap/kernel_7.81
- version/sap netweaver as abap/kernel_7.82
- version/sap netweaver as abap/kernel_7.83
- version/sap netweaver as abap/kernel_8.04
- version/sap netweaver as abap/krnl32nuc_7.22
- version/sap netweaver as abap/krnl32nuc_7.22ext
- version/sap netweaver as abap/krnl64nuc_7.22
- version/sap netweaver as abap/krnl64nuc_7.22ext
- version/sap netweaver as abap/krnl64nuc_7.49
- version/sap netweaver as abap/krnl64uc_7.22
- version/sap netweaver as abap/krnl64uc_7.22ext
- version/sap netweaver as abap/krnl64uc_7.49
- version/sap netweaver as abap/krnl64uc_7.53
- version/sap netweaver as abap/krnl64uc_7.73
- version/sap netweaver as abap/krnl64uc_8.04