CVE-2023-28528 : IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to e

IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the invscout command to execute arbitrary commands. IBM X-Force ID: 251207.

Published 2023-04-28 03:15:08

Updated 2023-05-18 16:15:10

Source IBM Corporation

View at NVD, CVE.org

Products affected by CVE-2023-28528

IBM » AIX » Version: 7.1
cpe:2.3:o:ibm:aix:7.1:*:*:*:*:*:*:*
Matching versions
IBM » AIX » Version: 7.2
cpe:2.3:o:ibm:aix:7.2:*:*:*:*:*:*:*
Matching versions
IBM » AIX » Version: 7.3
cpe:2.3:o:ibm:aix:7.3:*:*:*:*:*:*:*
Matching versions
IBM » Vios » Version: 3.1
cpe:2.3:a:ibm:vios:3.1:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2023-28528

EPSS FAQ

0.19%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 57 %

Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2023-28528

invscout RPM Privilege Escalation

Disclosure Date: 2023-04-24

First seen: 2023-09-11

exploit/aix/local/invscout_rpm_priv_esc

This module exploits a command injection vulnerability in IBM AIX invscout set-uid root utility present in AIX 7.2 and earlier. The undocumented -rpm argument can be used to install an RPM file; and the undocumented -o argument passes arguments to the rpm ut

More information

CVSS scores for CVE-2023-28528

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	1.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
8.4	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	2.5	5.9	IBM Corporation
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2023-28528

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Assigned by: psirt@us.ibm.com (Primary)

References for CVE-2023-28528

http://packetstormsecurity.com/files/172458/IBM-AIX-7.2-inscout-Privilege-Escalation.html

IBM AIX 7.2 inscout Privilege Escalation ≈ Packet Storm
https://exchange.xforce.ibmcloud.com/vulnerabilities/251207

IBM AIX command execution CVE-2023-28528 Vulnerability Report
VDB Entry;Vendor Advisory
https://www.ibm.com/support/pages/node/6983232

Security Bulletin: AIX is vulnerable to arbitrary command execution due to invscout (CVE-2023-28528)
Patch;Vendor Advisory

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