CVE-2024-30372

EUVD-2024-28293

22.11.2024, 20:15

Allegra getLinkText Server-Side Template Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. Authentication is required to exploit this vulnerability.

The specific flaw exists within the implementation of getLinkText method. The issue results from the lack of proper validation of a user-supplied string before processing it with the template engine. An attacker can leverage this vulnerability to execute code in the context of LOCAL SERVICE. Was ZDI-CAN-23609.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	6.3 MEDIUM	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Base Score

CVSS 3.x

EPSS Score

Percentile: 91%

Affected Products (NVD)

Vendor	Product	Version
alltena	allegra	𝑥 < 7.5.1

𝑥

= Vulnerable software versions

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources.

Vendor	Product	Version	Source
alltena	allegra	𝑥 < 7.5.2	ADP

Common Weakness Enumeration

CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.

References

https://alltena.com/en/resources/release-notes/relnotes-7-5-2

https://www.zerodayinitiative.com/advisories/ZDI-24-1165/