Information disclosure in urllib3 - CVE-2018-20060
Published: March 26, 2020 / Updated: November 10, 2023
Vulnerability identifier: #VU26413
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2018-20060
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: urlib3
Affected software:
urllib3
urllib3
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to Authorization HTTP header is not removed from the HTTP request during request redirection in "urllib3/util/retry.py". A remote attacker can intercept the request and gain access to sensitive information, passed via Authorization HTTP header.
How to mitigate CVE-2018-20060
Install updates from vendor's website.
Sources
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00039.html
- https://access.redhat.com/errata/RHSA-2019:2272
- https://bugzilla.redhat.com/show_bug.cgi?id=1649153
- https://github.com/urllib3/urllib3/blob/master/CHANGES.rst
- https://github.com/urllib3/urllib3/issues/1316
- https://github.com/urllib3/urllib3/pull/1346
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5SJERZEJDSUYQP7BNBXMBHRHGY26HRZD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BXLAXHM3Z6DUCXZ7ZXZ2EAYJXWDCZFCT/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XWP36YW3KSVLXDBY3QJKDYEPCIMN3VQZ/
- https://usn.ubuntu.com/3990-1/