Sage 300 ERP up to 6.8.x Installer C:\Sage\Sage300\Runtime untrusted search path

Summaryinfo

A vulnerability was found in Sage 300 ERP up to 6.8.x and classified as critical. This issue affects some unknown processing of the file C:\Sage\Sage300\Runtime of the component Installer. Such manipulation leads to untrusted search path. This vulnerability is referenced as CVE-2021-45492. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Sage 300 ERP up to 6.8.x (Enterprise Resource Planning Software) and classified as critical. Affected by this issue is an unknown code of the file C:\Sage\Sage300\Runtime of the component Installer. The manipulation with an unknown input leads to a untrusted search path vulnerability. Using CWE to declare the problem leads to CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published 07/14/2022. The advisory is shared for download at controlgap.com. This vulnerability is handled as CVE-2021-45492 since 12/25/2021. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1574.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Enterprise Resource Planning Software

Vendor

• Sage

Name

• 300 ERP

Version

• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• 6.5
• 6.6
• 6.7
• 6.8

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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