CVE-2021-27633
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
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 ThCPIC() 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-2021-27633
- Assigner
- cna@sap.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-06-09T14:15:09
- Last Modified Date
- 2022-10-31T14:44:58
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:sap:netweaver_abap:kernel_7.22:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:kernel_7.49:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:kernel_7.53:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:kernel_7.73:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:kernel_8.04:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:krnl32nuc_7.22:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:krnl32nuc_7.22ext:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.22:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.22ext:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.49:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.22:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.22ext:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.49:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.53:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.73:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:sap:netweaver_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/3020209 | Permissions Required Vendor Advisory |
| https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 | Vendor Advisory |
| http://seclists.org/fulldisclosure/2021/Oct/30 | Mailing List Patch Third Party Advisory |
| http://packetstormsecurity.com/files/164596/SAP-NetWeaver-ABAP-Gateway-Memory-Corruption.html | Patch Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-27633 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27633 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:48:26 | Added to TrackCVE | |||
| 2022-12-05 03:57:27 | 2021-06-09T14:15Z | 2021-06-09T14:15:09 | CVE Published Date | updated |
| 2022-12-05 03:57:27 | 2022-10-31T14:44:58 | CVE Modified Date | updated | |
| 2022-12-05 03:57:28 | Analyzed | Vulnerability Status | updated |