The ConnectionExists function in lib/url.c in libcurl before 7.47.0 does not properly re-use NTLM-authenticated proxy connections, which might allow remote attackers to authenticate as other users via a request, a similar issue to CVE-2014-0015.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2016-0755 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 4 |
|---|---|
| Base Metrics | AV:N/AC:H/Au:N/C:P/I:P/A:N |
| Access Vector | Network |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux | httpd24-curl | Not affected |
| Red Hat JBoss Web Server 3.0 | curl | Will not fix |
| Red Hat Enterprise Linux 7 | curl | Will not fix |
| Red Hat Enterprise Linux 6 | curl | Will not fix |
| Red Hat Enterprise Linux 5 | curl | Will not fix |
Vulmon