7.5
HIGH
CVE-2021-27629
SAP NetWeaver ABAP Server and ABAP Platform Enqueue Server Denial of Service (DoS) Vulnerability
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 EncPSetUnsupported() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.

INFO

Published Date :

June 9, 2021, 2:15 p.m.

Last Modified :

Oct. 31, 2022, 2:46 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-27629 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-27629 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Sap netweaver_as_abap
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-27629.

URL Resource
https://launchpad.support.sap.com/#/notes/3020104 Permissions Required Vendor Advisory
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 Broken Link Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Onapsis Security Advisories. https://www.onapsis.com

Updated: 9 months ago
10 stars 1 fork 1 watcher
Born at : March 17, 2021, 5:01 p.m. This repo has been linked 44 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-27629 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-27629 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Oct. 31, 2022

    Action Type Old Value New Value
    Changed Reference Type https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 Vendor Advisory https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 Broken Link, Vendor Advisory
  • CVE Modified by [email protected]

    Oct. 17, 2022

    Action Type Old Value New Value
    Removed Reference http://packetstormsecurity.com/files/164595/SAP-NetWeaver-ABAP-Enqueue-Memory-Corruption.html [Patch, Third Party Advisory, VDB Entry]
    Removed Reference http://seclists.org/fulldisclosure/2021/Oct/29 [Mailing List, Patch, Third Party Advisory]
    Removed CWE SAP SE CWE-20
    Added CWE SAP SE CWE-125
    Removed CWE Reason CWE-20 / More specific CWE option available
  • Reanalysis by [email protected]

    Oct. 07, 2022

    Action Type Old Value New Value
    Removed CWE NIST CWE-20
    Added CWE NIST CWE-125
  • Modified Analysis by [email protected]

    Nov. 04, 2021

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/164595/SAP-NetWeaver-ABAP-Enqueue-Memory-Corruption.html No Types Assigned http://packetstormsecurity.com/files/164595/SAP-NetWeaver-ABAP-Enqueue-Memory-Corruption.html Patch, Third Party Advisory, VDB Entry
    Changed Reference Type http://seclists.org/fulldisclosure/2021/Oct/29 No Types Assigned http://seclists.org/fulldisclosure/2021/Oct/29 Mailing List, Patch, Third Party Advisory
  • CVE Modified by [email protected]

    Oct. 22, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/164595/SAP-NetWeaver-ABAP-Enqueue-Memory-Corruption.html [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 22, 2021

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2021/Oct/29 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 14, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://launchpad.support.sap.com/#/notes/3020104 No Types Assigned https://launchpad.support.sap.com/#/notes/3020104 Permissions Required, Vendor Advisory
    Changed Reference Type https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 No Types Assigned https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 Vendor Advisory
    Added CWE NIST CWE-20
    Added CPE Configuration OR *cpe:2.3:a:sap:netweaver_as_abap:kernel_7.22:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:kernel_7.49:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:kernel_7.53:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:kernel_7.73:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:kernel_7.77:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:kernel_7.81:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:kernel_7.82:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:kernel_7.83:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:kernel_8.04:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:krnl32nuc_7.22:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:krnl32nuc_7.22ext:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:krnl64nuc_7.22:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:krnl64nuc_7.22ext:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:krnl64nuc_7.49:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_7.22:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_7.22ext:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_7.49:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_7.53:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_7.73:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_abap:krnl64uc_8.04:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-27629 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-27629 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.11 }} 0.00%

score

0.43670

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability