HTTP_PROXY Environment Variable Vulnerability in PHP by The PHP Group
CVE-2016-5385

8.1HIGH

Key Information:

Vendor

Oracle
Status
Enterprise Manager Ops Center
Communications User Data Repository
Linux
Vendor
CVE Published:
19 July 2016

What is CVE-2016-5385?

The vulnerability arises from PHP versions up to 7.0.8 failing to handle namespace conflicts as specified in RFC 3875. This oversight allows attackers to exploit the HTTP_PROXY environment variable, potentially routing an application's outbound HTTP requests to arbitrary proxy servers by manipulating the Proxy header in an HTTP request. Applications utilizing getenv('HTTP_PROXY') or those configured via CGI can be particularly vulnerable, which creates opportunities for data exfiltration or other malicious activities.

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References

https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisoryx_refsource_FEDORA
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/do...
x_refsource_CONFIRM
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/do...
x_refsource_CONFIRM

EPSS Score

82% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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