Arbitrary Command Injection Affecting sudo package, versions <0:1.8.6p3-25.23.amzn1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Sept 2021
- disclosed29 May 2018
Introduced: 29 May 2018
CVE-2016-7076 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2018.03 sudo to version 0:1.8.6p3-25.23.amzn1 or higher.
This issue was patched in ALAS-2017-780.
NVD Description
Note: Versions mentioned in the description apply only to the upstream sudo package and not the sudo package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.
sudo before version 1.8.18p1 is vulnerable to a bypass in the sudo noexec restriction if application run via sudo executed wordexp() C library function with a user supplied argument. A local user permitted to run such application via sudo with noexec restriction could possibly use this flaw to execute arbitrary commands with elevated privileges.
References
- http://www.securityfocus.com/bid/95778
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7076
- https://security.netapp.com/advisory/ntap-20181127-0002/
- https://www.sudo.ws/alerts/noexec_wordexp.html
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7076
- http://rhn.redhat.com/errata/RHSA-2016-2872.html
- https://usn.ubuntu.com/3968-1/
- https://usn.ubuntu.com/3968-3/