Impact: Important Public Date: 2016-07-18 CWE: CWE-20 Bugzilla: 1357345: CVE-2016-1000111 Python Twisted: sets environmental variable based on user supplied Proxy request header It was discovered that python-twisted-web used the value of the Proxy header from HTTP requests to initialize the HTTP_PROXY environment variable for CGI scripts, which in turn was incorrectly used by certain HTTP client implementations to configure the proxy for outgoing HTTP requests. A remote attacker could possibly use this flaw to redirect HTTP requests performed by a CGI script to an attacker-controlled proxy via a malicious HTTP request.
Find out more about CVE-2016-1000111 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue affects the versions of python-twisted as shipped with Red Hat Satellite 6.x. However due to the manner in which python-twisted is used exploitation of this issue by an attacker would require significant access to the server, or be able to modify requests from other users via additional vulnerabilities. A future update may address this issue.
| Base Score | 5 |
|---|---|
| Base Metrics | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | Partial |
| Availability Impact | None |
| CVSS3 Base Score | 5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Changed |
| Confidentiality | None |
| Integrity Impact | Low |
| Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Satellite 6.1 - Optional | RHSA-2018:0273 | 2018-02-05 |
| Red Hat Enterprise Linux 6 (python-twisted-web) | RHSA-2016:1978 | 2016-09-29 |
| Red Hat Satellite Capsule 6.1 | RHSA-2018:0273 | 2018-02-05 |
| Red Hat Satellite 6.2 (python-twisted-web) | RHSA-2018:0273 | 2018-02-05 |
| Red Hat Enterprise Linux 7 (python-twisted-web) | RHSA-2016:1978 | 2016-09-29 |
| Red Hat Satellite Capsule 6.2 (python-twisted-web) | RHSA-2018:0273 | 2018-02-05 |
| Platform | Package | State |
|---|---|---|
| Red Hat Satellite 6 | python-twisted-web | Affected |
Vulmon