Security Bulletin: IBM DataPower Gateway vulnerable to data truncation and DoS in Kerberos (CVE-2024-37370 & CVE-2024-37371)

Summary

Kerberos is used by IBM DataPower Gateway as an optional authentication mechanism.

Vulnerability Details

**CVEID:**CVE-2024-37370 DESCRIPTION: MIT Kerberos 5 (aka krb5) could allow a remote attacker to bypass security restrictions, caused by improper access control. By sending a specially crafted request to modify the plaintext Extra Count field of a confidential GSS krb5 wrap token, an attacker could exploit this vulnerability to cause the unwrapped token to appear truncated to the application.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/296012 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H)

**CVEID:**CVE-2024-37371 DESCRIPTION: MIT Kerberos 5 (aka krb5) is vulnerable to a denial of service, caused by an invalid memory reads during GSS message token handling. By sending specially crafted message tokens, a remote authenticated attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/296013 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now.

Workarounds and Mitigations

None