Bug 1104999 (CVE-2014-3982, CVE-2014-3986)
| Summary: | CVE-2014-3982 CVE-2014-3986 lynis: insecure temporary file issues leading to privilege escalation | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Murray McAllister <mmcallis> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | i, jrusnack |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | lynis-1.5.6-1.fc20 lynis-1.5.6-1.el6 lynis-1.5.6-1.el7 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-02-27 00:53:40 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1105000, 1105001 | ||
| Bug Blocks: | |||
Created lynis tracking bugs for this issue: Affects: fedora-all [bug 1105000] Affects: epel-6 [bug 1105001] Sorry for the useless bug. Filed trackers in case the maintainers know more... MITRE assigned CVE-2014-3982 to the following issue: if [ "${OS}" = "AIX" ]; then TMPFILE=/tmp/lynis.$$ This should not affect Linux. MITRE also assigned CVE-2014-3986 to the following which does affect Linux: TMPFILE=`mktemp /tmp/lynis.XXXXXX` ... find ${I} -name "*.conf" -print >> ${TMPFILE}.unsorted This is the issue the original report (http://seclists.org/fulldisclosure/2014/Jun/21) refers to. References: http://www.openwall.com/lists/oss-security/2014/06/06/12 http://www.openwall.com/lists/oss-security/2014/06/07/3 These issues were fixed upstream in version 1.5.5: http://linux-audit.com/lynis-security-notice-154-and-older/ lynis-1.5.6-1.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report. lynis-1.5.6-1.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report. |
It was reported[1] lynis, a security auditing tool, uses a predictable filename in /tmp/. As lynis must be run as root, a local attacker could possibly use this flaw to perform a symbolic link attack and escalate their privileges to root. The report may be referring to the following: 39 if [ "${OS}" = "AIX" ]; then 40 TMPFILE=/tmp/lynis.$$ Testing on Fedora 20 revealed /tmp/ffiYFc1nZ was used across multiple runs; however, this name does not appear in the source and may be related to something else. [1] http://seclists.org/fulldisclosure/2014/Jun/21 CVE request: http://www.openwall.com/lists/oss-security/2014/06/05/14