It was discovered that httpd 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-2016-5387 from the MITRE CVE dictionary dictionary and NIST NVD.
| 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 Software Collections for Red Hat Enterprise Linux 7 (httpd24-httpd) | RHSA-2016:1420 | 2016-07-18 |
| Red Hat JBoss Web Server 3.0 for RHEL 7 | RHSA-2016:1635 | 2016-08-18 |
| Red Hat Enterprise Linux 6 (httpd) | RHSA-2016:1421 | 2016-07-18 |
| Red Hat JBoss Core Services 1 | RHSA-2016:1625 | 2016-08-17 |
| Red Hat JBoss Enterprise Web Server 2 for RHEL 6 Server (httpd) | RHSA-2016:1649 | 2016-08-22 |
| Red Hat JBoss Web Server 2.1 | RHSA-2016:1650 | 2016-08-22 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 (httpd24-httpd) | RHSA-2016:1420 | 2016-07-18 |
| Red Hat JBoss Enterprise Web Server 2 for RHEL 7 Server (httpd22) | RHSA-2016:1648 | 2016-08-22 |
| Red Hat JBoss Web Server 3.0 for RHEL 6 | RHSA-2016:1636 | 2016-08-18 |
| Red Hat JBoss Core Services on RHEL 7 Server (jbcs-httpd24-httpd) | RHSA-2016:1851 | 2016-09-12 |
| Red Hat JBoss Web Server 3.0 | RHSA-2016:1624 | 2016-08-17 |
| Red Hat JBoss Core Services on RHEL 6 Server (jbcs-httpd24-httpd) | RHSA-2016:1851 | 2016-09-12 |
| Red Hat Enterprise Linux 7 (httpd) | RHSA-2016:1422 | 2016-07-18 |
| Red Hat Enterprise Linux 5 (httpd) | RHSA-2016:1421 | 2016-07-18 |
| Platform | Package | State |
|---|---|---|
| Red Hat JBoss EWS 1 | httpd | Will not fix |
| Red Hat JBoss EAP 7 | httpd22 | Not affected |
| Red Hat JBoss EAP 6 | httpd22 | Affected |
Vulmon