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PYSEC-2017-66

Quick fix

PYSEC-2017-66 — pykerberos: upgrade to the fixed version with the command below.

pip install --upgrade 'pykerberos>=1.1.6'

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/pykerberos

Introduced in: 0Fixed in: 1.1.6

Fixpip install --upgrade 'pykerberos>=1.1.6'

References

https://pypi.python.org/pypi/kerberos[WEB]
https://github.com/apple/ccs-pykerberos/issues/31[REPORT]
https://bugzilla.redhat.com/show_bug.cgi?id=1223802[REPORT]
http://www.securityfocus.com/bid/74760[WEB]
http://www.openwall.com/lists/oss-security/2015/05/21/3[WEB]
https://github.com/advisories/GHSA-mffc-9gx5-99g3[ADVISORY]