CVE-2024-56356: 
JetBrains TeamCity vulnerability analysis and mitigation

CVE-2024-56356 affects JetBrains TeamCity versions before 2024.12, where an insecure XMLParser configuration vulnerability was identified. The vulnerability was discovered and disclosed on December 20, 2024, and affects the core functionality of TeamCity's XML parsing capabilities (NVD Database).

The vulnerability is classified as a CWE-611 (Improper Restriction of XML External Entity Reference) issue. It has received a CVSS v3.1 base score of 7.1 (HIGH) from NIST with a vector string of CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N, while JetBrains assessed it with a score of 5.9 (MEDIUM) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N (NVD Database).

The vulnerability could lead to potential XXE (XML External Entity) attacks, which may result in high confidentiality impact and low integrity impact to the affected systems. The attack requires network access and low privileges to execute, but no user interaction is needed (NVD Database).

The vulnerability has been fixed in JetBrains TeamCity version 2024.12. Users are advised to upgrade to this version or later to mitigate the risk (Vendor Advisory).