PT-2021-17779 · Camunda · Camunda Modeler

Xiaofen9 · Published 2021-03-11 · Updated 2024-08-03 · CVE-2021-28154

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions: Camunda Modeler versions through 4.6.0

Description: The issue allows arbitrary file access. A remote attacker may send a crafted IPC message to the exposed vulnerable ipcRenderer IPC interface, which manipulates the readFile and writeFile APIs. The vendor states that the app is secured in a way that it does not allow any remote scripts to be opened, no unsafe scripts to be evaluated, and no remote sites to be browsed.

Recommendations: For Camunda Modeler versions through 4.6.0, consider disabling the ipcRenderer IPC interface as a temporary workaround until a patch is available. Restrict access to the readFile and writeFile APIs to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2021-28154

Affected Products

Camunda Modeler

References · 5

• 🔥 https://github.com/camunda/camunda-modeler/issues/2143 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-28154 · Security Note
• https://osv.dev/vulnerability/CVE-2021-28154 · Vendor Advisory
• https://t.me/cvenotify/88853 · Telegram Post
• https://t.me/cibsecurity/24816 · Telegram Post