8.2
HIGH
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 :

Feb. 11, 2021, 11:03 p.m.

Remotely Exploitable :

Yes !

Impact Score :

4.2

Exploitability Score :

3.9
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.

Affected Products

The following products are affected by CVE-2021-20353 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 Ibm websphere_application_server
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

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

Updated: 5 months, 3 weeks ago
2 stars 0 fork 0 watcher
Born at : Dec. 25, 2020, 7:07 a.m. This repo has been linked 47 different CVEs too.

https://github.com/GrrrDog/Java-Deserialization-Cheat-Sheet

Updated: 3 weeks, 5 days ago
48 stars 0 fork 0 watcher
Born at : Dec. 2, 2019, 9:15 p.m. This repo has been linked 158 different CVEs too.

The cheat sheet about Java Deserialization vulnerabilities

javadeser java-deserialization pentesting

Updated: 1 week, 6 days ago
3011 stars 537 fork 537 watcher
Born at : Feb. 23, 2016, 10:28 p.m. This repo has been linked 168 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-2021-20353 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 [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]
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-2021-20353 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.

Exploit Prediction

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

1.25 }} 0.36%

score

0.85565

percentile

CVSS31 - Vulnerability Scoring System
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