Executive Summary

Informations
Name CVE-2020-15258 First vendor Publication 2020-10-16
Vendor Cve Last vendor Modification 2020-10-28

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Overall CVSS Score 8
Base Score 8 Environmental Score 8
impact SubScore 5.9 Temporal Score 8
Exploitabality Sub Score 2.1
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction Required
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:S/C:P/I:P/A:P)
Cvss Base Score 6 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 6.8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15258

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 6

Sources (Detail)

Source Url
CONFIRM https://github.com/wireapp/wire-desktop/security/advisories/GHSA-5gpx-9976-ggpm
MISC https://benjamin-altpeter.de/shell-openexternal-dangers/
https://github.com/wireapp/wire-desktop/commit/b3705fffa75a03f055530f55a754fa...

Alert History

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Date Informations
2021-05-05 01:38:09
  • Multiple Updates
2021-05-04 13:46:13
  • Multiple Updates
2021-04-22 02:58:37
  • Multiple Updates
2021-02-18 01:30:53
  • Multiple Updates
2020-12-08 01:29:18
  • Multiple Updates
2020-10-28 21:23:29
  • Multiple Updates
2020-10-16 21:23:07
  • First insertion