CVE Vulnerability

CVE-2021-32836

ZStack is open source IaaS(infrastructure as a service) software. In ZStack before versions 3.10.12 and 4.1.6 there is a pre-auth unsafe deserialization vulnerability in the REST API. An attacker in control of the request body will be able to provide both the class name and the data to be deserialized and therefore will be able to instantiate an arbitrary type and assign arbitrary values to its fields. This issue may lead to a Denial Of Service. If a suitable gadget is available, then an attacker may also be able to exploit this vulnerability to gain pre-auth remote code execution. For additional details see the referenced GHSL-2021-087.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.1 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/zstackio/zstack/security/advisories/GHSA-jfvq-548h-342x Third Party Advisory
https://securitylab.github.com/advisories/GHSL-2021-087-zstack/ Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:zstack:zstack:*:*:*:*:*:*:*:*
cpe:2.3:a:zstack:zstack:*:*:*:*:*:*:*:*
Information

Published : 2021-09-09 02:15

Updated : 2022-04-25 05:26

NVD link : CVE-2021-32836

Mitre link : CVE-2021-32836

Products Affected
No products.
CWE
CWE-502

Deserialization of Untrusted Data