CVE-2024-37370: kerberos 5 — Fix

Description

In MIT Kerberos 5 (aka krb5) before 1.21.3, an attacker can modify the plaintext Extra Count field of a confidential GSS krb5 wrap token, causing the unwrapped token to appear truncated to the application.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-345 CWE-345

Affected Products

Vendor	Product	Versions
mit	kerberos_5	< 1.21.3

References

Advisories & Patches

https://github.com/krb5/krb5/commit/55fbf435edbe2e92dd8101669b1ce7144bc96fef https://web.mit.edu/kerberos/www/advisories/ https://github.com/krb5/krb5/commit/55fbf435edbe2e92dd8101669b1ce7144bc96fef https://web.mit.edu/kerberos/www/advisories/

Other References

https://security.netapp.com/advisory/ntap-20241108-0007/ https://cert-portal.siemens.com/productcert/html/ssa-082556.html

Frequently Asked Questions

What is CVE-2024-37370? +

In MIT Kerberos 5 (aka krb5) before 1.21.3, an attacker can modify the plaintext Extra Count field of a confidential GSS krb5 wrap token, causing the unwrapped token to appear truncated to the application. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-37370? +

CVE-2024-37370 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-37370? +

CVE-2024-37370 affects products from mit, specifically: kerberos_5. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-37370? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-37370