CVE-2021-20353
IBM WebSphere Application Server XXE Injection Vulnerability
Description
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 194882.
INFO
Published Date :
Feb. 10, 2021, 5:15 p.m.
Last Modified :
Nov. 21, 2024, 5:46 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 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Upgrade to IBM WebSphere Application Server 8.5.5.20, 9.0.5.7, or later. Alternatively, upgrade to the minimal fix pack levels required by the interim fix and then apply Interim Fix PH33228.
Public PoC/Exploit Available at Github
CVE-2021-20353 has a 3 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-2021-20353.
| URL | Resource |
|---|---|
| https://exchange.xforce.ibmcloud.com/vulnerabilities/194882 | VDB Entry Vendor Advisory |
| https://www.ibm.com/support/pages/node/6413709 | Patch Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-21-174/ | Third Party Advisory VDB Entry |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/194882 | VDB Entry Vendor Advisory |
| https://www.ibm.com/support/pages/node/6413709 | Patch Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-21-174/ | Third Party Advisory VDB Entry |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20353 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-2021-20353
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).
None
https://github.com/GrrrDog/Java-Deserialization-Cheat-Sheet
The cheat sheet about Java Deserialization vulnerabilities
javadeser java-deserialization pentesting
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-20353 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20353 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 https://exchange.xforce.ibmcloud.com/vulnerabilities/194882 Added Reference https://www.ibm.com/support/pages/node/6413709 Added Reference https://www.zerodayinitiative.com/advisories/ZDI-21-174/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Feb. 11, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L Changed Reference Type https://exchange.xforce.ibmcloud.com/vulnerabilities/194882 No Types Assigned https://exchange.xforce.ibmcloud.com/vulnerabilities/194882 VDB Entry, Vendor Advisory Changed Reference Type https://www.ibm.com/support/pages/node/6413709 No Types Assigned https://www.ibm.com/support/pages/node/6413709 Patch, Vendor Advisory Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-174/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-174/ Third Party Advisory, VDB Entry Added CWE NIST CWE-611 Added CPE Configuration OR *cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:* versions from (including) 7.0.0.0 up to (excluding) 7.0.0.45 *cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:* versions from (including) 8.0.0.0 up to (excluding) 8.0.0.15 *cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:* versions from (including) 8.5.0.0 up to (excluding) 8.5.5.20 *cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:* versions from (including) 9.0.0.0 up to (excluding) 9.0.5.7 -
CVE Modified by [email protected]
Feb. 10, 2021
Action Type Old Value New Value Changed Description IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 194882. IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 194882. Added Reference https://www.zerodayinitiative.com/advisories/ZDI-21-174/ [No Types Assigned]
Vulnerability Scoring Details
Base CVSS Score: 8.2
Base CVSS Score: 8.2
Base CVSS Score: 6.4
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.48 }} 0.50%
score
0.80291
percentile