CVE Vulnerability

CVE-2020-15258

In Wire before 3.20.x, `shell.openExternal` was used without checking the URL. This vulnerability allows an attacker to execute code on the victims machine by sending messages containing links with arbitrary protocols. The victim has to interact with the link and sees the URL that is opened. The issue was patched by implementing a helper function which checks if the URL's protocol is common. If it is common, the URL will be opened externally. If not, the URL will not be opened and a warning appears for the user informing them that a probably insecure URL was blocked from being executed. The issue is patched in Wire 3.20.x. More technical details about exploitation are available in the linked advisory.

6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.8 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.1 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/wireapp/wire-desktop/security/advisories/GHSA-5gpx-9976-ggpm Exploit Third Party Advisory
https://benjamin-altpeter.de/shell-openexternal-dangers/ Exploit Third Party Advisory
https://github.com/wireapp/wire-desktop/commit/b3705fffa75a03f055530f55a754face5ac0623b Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:wire:wire:*:*:*:*:*:*:*:*
Information

Published : 2020-10-16 05:15

Updated : 2020-10-28 04:38

NVD link : CVE-2020-15258

Mitre link : CVE-2020-15258

Products Affected
No products.
CWE
CWE-20