CVE-2018-1283

Description

In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header. This comes from the "HTTP_SESSION" variable name used by mod_session to forward its data to CGIs, since the prefix "HTTP_" is also used by the Apache HTTP Server to pass HTTP header fields, per CGI specifications.

5.3

CVSS

Severity: Medium

CVSS 3.0 •

CVSS 2.0 •

EPSS 5.65% Top 15%

Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory apache.org

Affected: Apache Software Foundation Apache HTTP Server

References

Link	Tags
https://usn.ubuntu.com/3627-1/	third party advisory vendor advisory
https://www.debian.org/security/2018/dsa-4164	third party advisory vendor advisory
https://security.netapp.com/advisory/ntap-20180601-0004/	third party advisory
https://access.redhat.com/errata/RHSA-2018:3558	third party advisory vendor advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us	third party advisory
https://access.redhat.com/errata/RHSA-2019:0367	third party advisory vendor advisory
http://www.securitytracker.com/id/1040568	vdb entry third party advisory
https://usn.ubuntu.com/3627-2/	third party advisory vendor advisory
http://www.securityfocus.com/bid/103520	vdb entry third party advisory
http://www.openwall.com/lists/oss-security/2018/03/24/4	third party advisory mailing list
https://httpd.apache.org/security/vulnerabilities_24.html	vendor advisory
https://access.redhat.com/errata/RHSA-2019:0366	third party advisory vendor advisory
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E	mailing list
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E	mailing list
https://www.tenable.com/security/tns-2019-09
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E	mailing list
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E	mailing list
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E	mailing list
https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E	mailing list
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E	mailing list
https://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3E	mailing list
https://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3E	mailing list
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E	mailing list
https://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E	mailing list
https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E	mailing list
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E	mailing list

Frequently Asked Questions

What is the severity of CVE-2018-1283?: CVE-2018-1283 has been scored as a medium severity vulnerability.
How to fix CVE-2018-1283?: To fix CVE-2018-1283, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-1283 being actively exploited in the wild?: It is possible that CVE-2018-1283 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-1283?: CVE-2018-1283 affects Apache Software Foundation Apache HTTP Server.

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