PT-2021-11212 · Google+1 · Google Web Toolkit+1

Published 2021-01-11 · Updated 2021-07-21 · CVE-2020-26118

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: SmartBear Collaborator Server versions prior to 13.3.13302

Description: The issue arises from the use of the Google Web Toolkit (GWT) API, introducing a post-authentication Java deserialization vulnerability. Specifically, the application's UpdateMemento class accepts a serialized Java object directly from the user without proper sanitization. This allows a malicious object to be submitted to the server via an authenticated attacker, potentially executing commands on the underlying system.

Recommendations: For versions prior to 13.3.13302, consider disabling the UpdateMemento class or restricting its access to prevent exploitation until a patch is available. Additionally, ensure that all user input is properly sanitized to prevent malicious objects from being submitted to the server. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2020-26118

Affected Products

Google Web Toolkit

Smartbear Collaborator Server

References · 6

• https://support.smartbear.com/collaborator/docs/general-info/version-history/ver-13/ver-13-0.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-26118 · Security Note
• https://support.smartbear.com/collaborator/docs/server/index.html · Vendor Advisory
• https://support.smartbear.com/collaborator/docs/general-info/whats-new.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-26118 · Vendor Advisory
• https://t.me/cvenotify/8416 · Telegram Post