CVE-2020-11467

An issue was discovered in Deskpro before 2019.8.0. This product enables administrators to modify the helpdesk interface by editing /portal/api/style/edit-theme-set/template-sources theme templates, and uses TWIG as its template engine. While direct access to self and _self variables was not permitted, one could abuse the accessible variables in one's context to reach a native unserialize function via the code parameter. There, on could pass a crafted payload to trigger a set of POP gadgets in order to achieve remote code execution.

CVSS v3.0 7.2 HIGH
CVSS v2.0 6.5 MEDIUM

7.2^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://blog.redforce.io/attacking-helpdesks-part-1-rce-chain-on-deskpro/	Exploit Third Party Advisory
https://support.deskpro.com/en/news/posts/deskpro-security-update-2019-09	Release Notes Vendor Advisory
https://support.deskpro.com/en/news/posts/deskpro-v2019-8-0-released-security-update	Release Notes Vendor Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:deskpro:deskpro:*:*:*:*:*:*:*:*

Information

Published : 2020-04-01 14:15

Updated : 2021-07-21 04:39

NVD link : CVE-2020-11467

Mitre link : CVE-2020-11467

JSON object : View

CWE

CWE-502

Deserialization of Untrusted Data

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Products Affected

deskpro

deskpro

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