CVE-2025-23206 is a high-severity vulnerability affecting the AWS Cloud Development Kit (CDK) where the IAM OIDC custom resource provider package downloads CA Thumbprints without proper certificate validation. This flaw, rated 8.1 HIGH (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N), stems from the tls.connect method always setting rejectUnauthorized: false, potentially allowing connections to unauthorized OIDC providers and enabling man-in-the-middle (MITM) attacks, though mitigated by execution in a Lambda environment. While the issuer URL is user-provided, the lack of strict validation (CWE-347) poses a risk. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage. A patch is in progress, and users should upgrade to CDK v2.177.0 (expected February 22, 2025) and enable the '@aws-cdk/aws-iam:oidcRejectUnauthorizedConnections' feature flag.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.177.0CPE matchmatch criteria | cpe:2.3:a:amazon:aws_cloud_development_kit:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.