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    CVE-2023-24620

    An issue was discovered in Esoteric YamlBeans through 1.15. A crafted YAML document is able perform am XML Entity Expansion attack against YamlBeans YamlReader. By exploiting the Anchor feature in YAML, it is possible to generate a small YAML document that, when read, is expanded to a large size, causing CPU and memory consumption, such as a Java Out-of-Memory exception.

    Published:Aug 25, 2023
    Last Modified:Nov 21, 2024
    EPS:Aug 25, 2023
    EPSS Score:0.00021
    CVSS Score:5.5

    Affected Products

    Vendor
    Esotericsoftware
    Product
    Yamlbeans

    Exploits

    https://github.com/Contrast-Security-OSS/yamlbeans/blob/main/SECURITY.mdhttps://github.com/Contrast-Security-OSS/yamlbeans/blob/main/SECURITY.md

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-221 Data Serialization External Entities Blowup

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High