PT-2023-19713 · Unknown · Esoteric Yamlbeans

Published 2023-08-25 · Updated 2023-08-31 · CVE-2023-24621

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Esoteric YamlBeans versions through 1.15

Description An issue was discovered in Esoteric YamlBeans that allows untrusted deserialisation to Java classes by default, where the data and class are controlled by the author of the YAML document being processed.

Recommendations For Esoteric YamlBeans versions through 1.15, consider disabling the deserialisation of untrusted YAML documents until a patch is available. Restrict access to sensitive Java classes to minimize the risk of exploitation. Avoid using untrusted YAML documents in production environments until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2023-24621

GHSA-JM7R-4PG6-GF26

Affected Products

Esoteric Yamlbeans

References · 14

• 🔥 https://github.com/Contrast-Security-OSS/yamlbeans/blob/main/SECURITY.md · Exploit
• https://osv.dev/vulnerability/CVE-2023-24621 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-jm7r-4pg6-gf26 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-24621 · Security Note
• https://github.com/EsotericSoftware/yamlbeans · Note
• https://t.me/cvenotify/57365 · Telegram Post
• https://twitter.com/CVEnew/status/1695352892730073150 · Twitter Post
• https://t.me/cibsecurity/69209 · Telegram Post
• https://twitter.com/CVEnew/status/1695168069427962366 · Twitter Post
• https://twitter.com/CVEnew/status/1695349755168088298 · Twitter Post
• https://twitter.com/CVEnew/status/1695536250483355944 · Twitter Post
• https://contrastsecurity.com · Note
• https://twitter.com/CVEnew/status/1695532847652647393 · Twitter Post
• https://github.com/EsotericSoftware · Note