Improper access control in Apache HTTP Server - CVE-2018-1283

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Main Vulnerability Database Vulnerabilities #VU11282

Improper access control in Apache HTTP Server - CVE-2018-1283

Published: March 27, 2018 / Updated: July 14, 2018


Vulnerability identifier: #VU11282
CSH Severity: Low
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-1283
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to modify data on the target system.

The weakness exists on systems with mod_session configured with SessionEnv on to forward session data to CGI applications due to improper input validation. A remote attacker can send a specially crafted 'Session' header value to potentially modify mod_session data.

Affected software

Apache HTTP Server
Arch Linux
Debian Linux
Amazon Linux AMI
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
SUSE Linux
Fedora
Tenable.sc
apache2 (Alpine package)
httpd (Red Hat package)
httpd
Dell Secure Connect Gateway
Data Computing Appliance (DCA)

How to mitigate CVE-2018-1283

Update to version 2.4.32.

Apache HTTP Server - update to 2.4.32
Tenable.sc - update to 5.13.0
apache2 (Alpine package) - update to 2.4.33-r0
httpd (Red Hat package) - update to 2.4.6-95.el7
Dell Secure Connect Gateway - update to 5.12.00.10
httpd - addressed in versions 2.4.33-2.fc26, 2.4.33-2.fc27, 2.4.33-2.fc28, 2.4.33-4.fc26
Data Computing Appliance (DCA) - update to 4.3.0.0

External References

Related Security Bulletins