PT-2021-18514 · Ibm · Ibm Websphere Application Server+1

Kajetan Rostojek · Published 2021-09-16 · Updated 2021-09-27 · CVE-2021-29842

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions IBM WebSphere Application Server versions 7.0 through 9.0 IBM WebSphere Application Server Liberty versions 17.0.0.3 through 21.0.0.9

Description The issue allows a remote user to enumerate usernames due to a difference in responses from valid and invalid login attempts.

Recommendations For IBM WebSphere Application Server versions 7.0 through 9.0, update to a version that includes a fix for this issue. For IBM WebSphere Application Server Liberty versions 17.0.0.3 through 21.0.0.9, update to a version that includes a fix for this issue.

Fix

Improper Restriction of Excessive Authentication Attempts

Weakness Enumeration

CWE-307

Related Identifiers

CVE-2021-29842

Affected Products

Ibm Websphere Application Server

Ibm Websphere Application Server Liberty

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2021-29842 · Security Note
• https://osv.dev/vulnerability/CVE-2021-29842 · Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/205202 · Vendor Advisory
• https://ibm.com/support/pages/node/6489485 · Vendor Advisory
• https://t.me/cvenotify/20989 · Telegram Post
• https://t.me/cvenotify/21018 · Telegram Post
• https://t.me/cibsecurity/29000 · Telegram Post