Test ID:	1.3.6.1.4.1.25623.1.0.891399
Category:	Debian Local Security Checks
Title:	Debian LTS: Security Advisory for ruby-passenger (DLA-1399-1)
Summary:	Two flaws were discovered in ruby-passenger for Ruby Rails and Rack;support that allowed attackers to spoof HTTP headers or exploit a race;condition which made privilege escalation under certain conditions;possible.;;CVE-2015-7519;Remote attackers could spoof headers passed to applications by using;an underscore character instead of a dash character in an HTTP;header as demonstrated by an X_User header.;;CVE-2018-12029;A vulnerability was discovered by the Pulse Security team. It was;exploitable only when running a non-standard;passenger_instance_registry_dir, via a race condition where after a;file was created, there was a window in which it could be replaced;with a symlink before it was chowned via the path and not the file;descriptor. If the symlink target was to a file which would be;executed by root such as root's crontab file, then privilege;escalation was possible. This is now mitigated by using fchown().
Description:	Summary: Two flaws were discovered in ruby-passenger for Ruby Rails and Rack support that allowed attackers to spoof HTTP headers or exploit a race condition which made privilege escalation under certain conditions possible. CVE-2015-7519 Remote attackers could spoof headers passed to applications by using an underscore character instead of a dash character in an HTTP header as demonstrated by an X_User header. CVE-2018-12029 A vulnerability was discovered by the Pulse Security team. It was exploitable only when running a non-standard passenger_instance_registry_dir, via a race condition where after a file was created, there was a window in which it could be replaced with a symlink before it was chowned via the path and not the file descriptor. If the symlink target was to a file which would be executed by root such as root's crontab file, then privilege escalation was possible. This is now mitigated by using fchown(). Affected Software/OS: ruby-passenger on Debian Linux Solution: For Debian 8 'Jessie', these problems have been fixed in version 4.0.53-1+deb8u1. We recommend that you upgrade your ruby-passenger packages. CVSS Score: 4.4 CVSS Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2015-7519 https://lists.debian.org/debian-lts-announce/2018/06/msg00007.html http://www.openwall.com/lists/oss-security/2015/12/07/1 http://www.openwall.com/lists/oss-security/2015/12/07/2 SuSE Security Announcement: SUSE-SU-2015:2337 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00024.html
Copyright	Copyright (C) 2018 Greenbone Networks GmbH http://greenbone.net

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