PT-2025-4003 · Amazon · Aws Sign-In Iam

Published 2025-01-23 · Updated 2025-10-14 · CVE-2025-0693

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 AWS IAM (affected versions not specified)

Description The issue is related to variable response times in the AWS Sign-in IAM user login flow, which allowed for the use of brute force enumeration techniques to identify valid IAM usernames in an arbitrary AWS account. This technique exploits server response time differences during the login process to determine the presence of a valid username.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-204

CWE-208

Related Identifiers

CVE-2025-0693

Affected Products

Aws Sign-In Iam

References · 22

• https://nvd.nist.gov/vuln/detail/CVE-2025-0693 · Security Note
• https://aws.amazon.com/security/security-bulletins/AWS-2025-002 · Vendor Advisory
• https://t.me/thebugbountyhunter/9624 · Telegram Post
• https://twitter.com/CVEnew/status/1882612835588731294 · Twitter Post
• https://twitter.com/_r_netsec/status/1893672938848817306 · Twitter Post
• https://t.me/cvedetector/16232 · Telegram Post
• https://twitter.com/tbbhunter/status/1889669615413768509 · Twitter Post
• https://twitter.com/TMJIntel/status/1889679352117277166 · Twitter Post
• https://t.me/rnetsec/21242 · Telegram Post
• https://twitter.com/AwsSecDigest/status/1952820157287366671 · Twitter Post
• https://twitter.com/RhinoSecurity/status/1889358777134051368 · Twitter Post
• https://t.me/cveNotify/138644 · Telegram Post
• https://twitter.com/_r_netsec/status/1893152005973291117 · Twitter Post
• https://twitter.com/_r_netsec/status/1889377133329559633 · Twitter Post
• https://t.me/defcon_news/128801 · Telegram Post