Auth bypass in Apple Pykerberos
CVE-2015-3206
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: +0.000
Affected products
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2015/05/21/3 (mailing-list, Patch, Mailing List, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- pypi.python.org/pypi/kerberos (Patch, Vendor Advisory)
- www.securityfocus.com/bid/74760 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/apple/ccs-pykerberos/issues/31 (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2015-3206?
- CVE-2015-3206 is a high-severity vulnerability in Apple Pykerberos, classified under Improper Authentication. CVSS score: 8.1/10. Published 2017-08-25.
- How severe is CVE-2015-3206?
- High severity. CVSS v3 base score is 8.1 out of 10.