CVE-2016-10127: XEE
First published: Tue Jan 10 2017(Updated: )
It was found that python-pysaml2 is vulnerable to an XML external entity attack. python-pysaml2 does not sanitize SAML XML requests or responses. References: <a href="http://seclists.org/oss-sec/2017/q1/50">http://seclists.org/oss-sec/2017/q1/50</a> <a href="https://bugs.debian.org/850716">https://bugs.debian.org/850716</a> Upstream bug: <a href="https://github.com/rohe/pysaml2/issues/366">https://github.com/rohe/pysaml2/issues/366</a> Proposed patch (! actually fixes <a class="bz_bug_link bz_status_CLOSED bz_closed bz_public " title="CLOSED ERRATA - CVE-2016-10149 python-pysaml2: Entity expansion issue" href="show_bug.cgi?id=1415710">Bug 1415710</a>): <a href="https://github.com/rohe/pysaml2/pull/379">https://github.com/rohe/pysaml2/pull/379</a>
Credit: security@debian.org security@debian.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/python-pysaml2 | <=6.5.1-1<=7.0.1-2<=7.5.0-2 | |
| pip/pysaml2 | <4.5.0 | 4.5.0 |
| pysaml2 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2016-10127
- https://github.com/rohe/pysaml2/issues/366
- https://github.com/rohe/pysaml2/pull/379
- https://github.com/rohe/pysaml2/commit/6e09a25d9b4b7aa7a506853210a9a14100b8bc9b
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=850716
- http://www.openwall.com/lists/oss-security/2017/01/19/5
- https://github.com/advisories/GHSA-m269-wj6g-c459 (Advisory)
- https://github.com/pypa/advisory-database/tree/main/vulns/pysaml2/PYSEC-2017-67.yaml
- https://web.archive.org/web/20200227195127/http://www.securityfocus.com/bid/95376
- http://seclists.org/oss-sec/2017/q1/50
- https://bugs.debian.org/850716
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1415710
- http://seclists.org/oss-sec/2017/q1/58
- https://github.com/openstack/requirements/blob/master/global-requirements.txt#L210
- https://github.com/rohe/pysaml2/pull/385
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1411794#c11
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1411794#c0
- https://access.redhat.com/security/cve/CVE-2016-10149
- https://access.redhat.com/security/cve/CVE-2016-10127
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1395609
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1411794#c12
- https://bugzilla.redhat.com/show_bug.cgi?id=1411794
- https://bugzilla.redhat.com/show_bug.cgi?id=1411794#c12
- https://www.openwall.com/lists/oss-security/2017/01/19/5
- https://security-tracker.debian.org/tracker/CVE-2016-10127
- http://www.securityfocus.com/bid/95376
Frequently Asked Questions
What is the severity of CVE-2016-10127?
The severity of CVE-2016-10127 is considered high due to the potential for XML external entity attacks.
How do I fix CVE-2016-10127?
To fix CVE-2016-10127, update python-pysaml2 to a version later than 7.5.0 or 4.5.0 for the pip package.
What components are affected by CVE-2016-10127?
CVE-2016-10127 affects python-pysaml2 versions up to and including 7.5.0 and the pip package pysaml2 versions below 4.5.0.
What type of attack does CVE-2016-10127 facilitate?
CVE-2016-10127 facilitates XML external entity attacks due to insufficient sanitization of SAML XML requests or responses.
Is CVE-2016-10127 a concern for all users of python-pysaml2?
Yes, CVE-2016-10127 is a concern for all users of python-pysaml2, particularly those processing external XML data.
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