PT-2020-18078 · Ibm · Ibm Sterling External Authentication Server+1

Published 2020-07-16 · Updated 2020-07-22 · CVE-2020-4462

Positive Technologies (AI Summary)

CVSS v3.1

8.2

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

Name of the Vulnerable Software and Affected Versions IBM Sterling External Authentication Server versions 2.4.2 through 6.0.1 IBM Sterling Secure Proxy versions 3.4.2 through 6.0.1

Description The issue allows for an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this to expose sensitive information or consume memory resources.

Recommendations For IBM Sterling External Authentication Server versions 2.4.2 through 6.0.1, update to a version that includes a fix for the XML External Entity Injection issue. For IBM Sterling Secure Proxy versions 3.4.2 through 6.0.1, update to a version that includes a fix for the XML External Entity Injection issue.

Fix

XXE

Weakness Enumeration

CWE-611

Related Identifiers

CVE-2020-4462

Affected Products

Ibm Sterling External Authentication Server

Ibm Sterling Secure Proxy

References · 5

• https://ibm.com/support/pages/node/6249317 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-4462 · Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/181482 · Vendor Advisory
• https://ibm.com/support/pages/node/6249331 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-4462 · Security Note