In Sage 300 ERP (formerly accpac) through 6.8.x, the installer configures the C:\Sage\Sage300\Runtime directory to be the first entry in the system-wide PATH environment variable. However, this directory is writable by unprivileged users because the Sage installer fails to set explicit permissions and therefore inherits weak permissions from the C:\ folder. Because entries in the system-wide PATH variable are included in the search order for DLLs, an attacker could perform DLL search-order hijacking to escalate their privileges to SYSTEM. Furthermore, if the Global Search or Web Screens functionality is enabled, then privilege escalation is possible via the GlobalSearchService and Sage.CNA.WindowsService services, again via DLL search-order hijacking because unprivileged users would have modify permissions on the application directory. Note that while older versions of the software default to installing in %PROGRAMFILES(X86)% (which would allow the Sage folder to inherit strong permissions, making the installation not vulnerable), the official Sage 300 installation guides for those versions recommend installing in C:\Sage, which would make the installation vulnerable.
Published 2022-07-14 16:15:08
Updated 2022-07-28 20:09:26
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Gain privilege

Exploit prediction scoring system (EPSS) score for CVE-2021-45492

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 14 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-45492

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
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

CWE ids for CVE-2021-45492

  • The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-45492

Products affected by CVE-2021-45492

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