CVE-2020-4949 : IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to an XML External Entity Injection (XXE) attack w

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: 192025.

Published 2021-01-26 15:15:13

Updated 2021-01-29 21:47:35

Source IBM Corporation

View at NVD, CVE.org

Vulnerability category: XML external entity (XXE) injection

Exploit prediction scoring system (EPSS) score for CVE-2020-4949

EPSS FAQ

0.16%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 52 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-4949

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.4	MEDIUM	AV:N/AC:L/Au:N/C:P/I:N/A:P	10.0	4.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: Partial
8.2	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L	3.9	4.2	IBM Corporation
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: Low
8.2	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L	3.9	4.2	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: Low

CWE ids for CVE-2020-4949

CWE-611 Improper Restriction of XML External Entity Reference

The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-4949

https://www.ibm.com/support/pages/node/6408244

Security Bulletin: WebSphere Application Server is vulnerable to an XML External Entity (XXE) Injection Vulnerability (CVE-2020-4949)
Patch;Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/192025

IBM WebSphere Application Server XML external entity injection CVE-2020-4949 Vulnerability Report
VDB Entry;Vendor Advisory

Products affected by CVE-2020-4949

IBM » Websphere Application Server
Versions from including (>=) 8.5.0.0 and up to, including, (<=) 8.5.5.18
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
Matching versions
When used together with: HP » Hp-ux » Version: N/A
When used together with: IBM » AIX » Version: N/A
When used together with: IBM » I » Version: N/A
When used together with: IBM » Z/os » Version: N/A
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
When used together with: Oracle » Solaris » Version: N/A
IBM » Websphere Application Server
Versions from including (>=) 7.0.0.0 and up to, including, (<=) 7.0.0.45
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
Matching versions
When used together with: HP » Hp-ux » Version: N/A
When used together with: IBM » AIX » Version: N/A
When used together with: IBM » I » Version: N/A
When used together with: IBM » Z/os » Version: N/A
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
When used together with: Oracle » Solaris » Version: N/A
IBM » Websphere Application Server
Versions from including (>=) 8.0.0.0 and up to, including, (<=) 8.0.0.15
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
Matching versions
When used together with: HP » Hp-ux » Version: N/A
When used together with: IBM » AIX » Version: N/A
When used together with: IBM » I » Version: N/A
When used together with: IBM » Z/os » Version: N/A
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
When used together with: Oracle » Solaris » Version: N/A
IBM » Websphere Application Server
Versions from including (>=) 9.0.0.0 and up to, including, (<=) 9.0.5.6
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
Matching versions
When used together with: HP » Hp-ux » Version: N/A
When used together with: IBM » AIX » Version: N/A
When used together with: IBM » I » Version: N/A
When used together with: IBM » Z/os » Version: N/A
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
When used together with: Oracle » Solaris » Version: N/A

Vulnerability Details : CVE-2020-4949

Exploit prediction scoring system (EPSS) score for CVE-2020-4949

CVSS scores for CVE-2020-4949

CWE ids for CVE-2020-4949

References for CVE-2020-4949

Products affected by CVE-2020-4949