What’s Vulnerable › Vulnerabilities

CVE-2015-3206

• Severity: high (CVSS 8.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-08-25 · updated 2026-06-17
• Weakness: CWE-287

Description

The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service (bad response), or have other unspecified impact by performing a man-in-the-middle attack.

Affected products

• Apple Pykerberos: all versions

References

• http://www.openwall.com/lists/oss-security/2015/05/21/3
• http://www.securityfocus.com/bid/74760
• https://bugzilla.redhat.com/show_bug.cgi?id=1223802
• https://github.com/apple/ccs-pykerberos/issues/31
• https://pypi.python.org/pypi/kerberos
• http://www.openwall.com/lists/oss-security/2015/05/21/3
• http://www.securityfocus.com/bid/74760
• https://bugzilla.redhat.com/show_bug.cgi?id=1223802
• https://github.com/apple/ccs-pykerberos/issues/31
• https://pypi.python.org/pypi/kerberos

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