// For flags

CVE-2021-20353

IBM WebSphere EDataGraphImpl Deserialization of Untrusted Data Information Disclosure Vulnerability

Severity Score

8.2
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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 versiones 7.0, 8.0, 8.5 y 9.0, es vulnerable a un ataque de inyección de entidad externa XML (XXE) al procesar datos XML. Un atacante remoto podría explotar esta vulnerabilidad para exponer información confidencial o consumir recursos de memoria. IBM X-Force ID: 194882

This vulnerability allows remote attackers to disclose sensitive information on affected installations of IBM WebSphere. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the EDataGraphImpl class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to disclose information in the context of root.

*Credits: r00t4dm at Cloud-Penetrating Arrow Lab and Longofo at Knownsec 404 Team
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-17 CVE Reserved
  • 2021-02-10 CVE Published
  • 2024-06-14 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-611: Improper Restriction of XML External Entity Reference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Ibm
Search vendor "Ibm"
 Websphere Application Server
Search vendor "Ibm" for product "Websphere Application Server"
 >= 7.0.0.0 < 7.0.0.45
Search vendor "Ibm" for product "Websphere Application Server" and version " >= 7.0.0.0 < 7.0.0.45"
-
Affected
Ibm
Search vendor "Ibm"
 Websphere Application Server
Search vendor "Ibm" for product "Websphere Application Server"
 >= 8.0.0.0 < 8.0.0.15
Search vendor "Ibm" for product "Websphere Application Server" and version " >= 8.0.0.0 < 8.0.0.15"
-
Affected
Ibm
Search vendor "Ibm"
 Websphere Application Server
Search vendor "Ibm" for product "Websphere Application Server"
 >= 8.5.0.0 < 8.5.5.20
Search vendor "Ibm" for product "Websphere Application Server" and version " >= 8.5.0.0 < 8.5.5.20"
-
Affected
Ibm
Search vendor "Ibm"
 Websphere Application Server
Search vendor "Ibm" for product "Websphere Application Server"
 >= 9.0.0.0 < 9.0.5.7
Search vendor "Ibm" for product "Websphere Application Server" and version " >= 9.0.0.0 < 9.0.5.7"
-
Affected