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CVE-2016-7076

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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.4, requiring local system access to exploit but requires specific conditions to be met without requiring user interaction . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from sudo_project organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-05-29T13:29:00.210

Last Modified

2024-11-21T02:57:24.680

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 6.4 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Secondary
CWE-184
Type: Primary
CWE-77

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	sudo_project	sudo	≤ 1.8.18	Yes

References

http://rhn.redhat.com/errata/RHSA-2016-2872.html Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/95778 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7076 Issue Tracking ([email protected])
https://security.netapp.com/advisory/ntap-20181127-0002/ ([email protected])
https://usn.ubuntu.com/3968-1/ ([email protected])
https://usn.ubuntu.com/3968-3/ ([email protected])
https://www.sudo.ws/alerts/noexec_wordexp.html Third Party Advisory ([email protected])
http://rhn.redhat.com/errata/RHSA-2016-2872.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/95778 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7076 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20181127-0002/ (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3968-1/ (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3968-3/ (af854a3a-2127-422b-91ae-364da2661108)
https://www.sudo.ws/alerts/noexec_wordexp.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For sudo_project's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.