CVE-2021-27635
SAP NetWeaver AS for JAVA XML Injection Disclosure
Description
SAP NetWeaver AS for JAVA, versions - 7.20, 7.30, 7.31, 7.40, 7.50, allows an attacker authenticated as an administrator to connect over a network and submit a specially crafted XML file in the application because of missing XML Validation, this vulnerability enables attacker to fully compromise confidentiality by allowing them to read any file on the filesystem or fully compromise availability by causing the system to crash. The attack cannot be used to change any data so that there is no compromise as to integrity.
INFO
Published Date :
June 9, 2021, 2:15 p.m.
Last Modified :
Nov. 21, 2024, 5:58 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.0 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Apply the appropriate patch according to the vendor advisory.
Public PoC/Exploit Available at Github
CVE-2021-27635 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-27635.
| URL | Resource |
|---|---|
| http://packetstormsecurity.com/files/164592/SAP-JAVA-NetWeaver-System-Connections-XML-Injection.html | Patch Third Party Advisory VDB Entry |
| http://seclists.org/fulldisclosure/2021/Oct/28 | Mailing List Patch Third Party Advisory |
| https://launchpad.support.sap.com/#/notes/3053066 | Permissions Required Vendor Advisory |
| https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 | Vendor Advisory |
| http://packetstormsecurity.com/files/164592/SAP-JAVA-NetWeaver-System-Connections-XML-Injection.html | Patch Third Party Advisory VDB Entry |
| http://seclists.org/fulldisclosure/2021/Oct/28 | Mailing List Patch Third Party Advisory |
| https://launchpad.support.sap.com/#/notes/3053066 | Permissions Required Vendor Advisory |
| https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-27635 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-2021-27635
weaknesses.
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
Reposito to keep track of all my high/critical findings.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-27635 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-27635 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/164592/SAP-JAVA-NetWeaver-System-Connections-XML-Injection.html Added Reference http://seclists.org/fulldisclosure/2021/Oct/28 Added Reference https://launchpad.support.sap.com/#/notes/3053066 Added Reference https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Nov. 04, 2021
Action Type Old Value New Value Changed Reference Type http://packetstormsecurity.com/files/164592/SAP-JAVA-NetWeaver-System-Connections-XML-Injection.html No Types Assigned http://packetstormsecurity.com/files/164592/SAP-JAVA-NetWeaver-System-Connections-XML-Injection.html Patch, Third Party Advisory, VDB Entry Changed Reference Type http://seclists.org/fulldisclosure/2021/Oct/28 No Types Assigned http://seclists.org/fulldisclosure/2021/Oct/28 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/164592/SAP-JAVA-NetWeaver-System-Connections-XML-Injection.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/28 [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 16, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H Changed Reference Type https://launchpad.support.sap.com/#/notes/3053066 No Types Assigned https://launchpad.support.sap.com/#/notes/3053066 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-611 Added CPE Configuration OR *cpe:2.3:a:sap:netweaver_application_server_for_java:7.20:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_application_server_for_java:7.30:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_application_server_for_java:7.31:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_application_server_for_java:7.40:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_application_server_for_java:7.50:*:*:*:*:*:*:*
Vulnerability Scoring Details
Base CVSS Score: 6.5
Base CVSS Score: 9
Base CVSS Score: 5.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.08 }} -0.86%
score
0.82402
percentile