CVE-2021-41101

Published on: 09/30/2021 12:00:00 AM UTC

Last Modified on: 10/07/2021 10:45:00 PM UTC

CVE-2021-41101 - advisory for GHSA-v7xx-cx8m-g66p

Source: Mitre Source: Nist Print: PDF PDF
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Certain versions of Wire Server from Wire contain the following vulnerability:

wire-server is an open-source back end for Wire, a secure collaboration platform. Before version 2.106.0, the CORS ` Access-Control-Allow-Origin ` header set by `nginz` is set for all subdomains of `.wire.com` (including `wire.com`). This means that if somebody were to find an XSS vector in any of the subdomains, they could use it to talk to the Wire API using the user's Cookie. A patch does not exist, but a workaround does. To make sure that a compromise of one subdomain does not yield access to the cookie of another, one may limit the `Access-Control-Allow-Origin` header to apps that actually require the cookie (account-pages, team-settings and the webapp).

  • CVE-2021-41101 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.
  • Affected Vendor/Software: URL Logo wireapp - wire-server version < 2.106.0

CVSS3 Score: 5.7 - MEDIUM

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW LOW REQUIRED
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED HIGH NONE NONE

CVSS2 Score: 3.5 - LOW

Access
Vector
Access
Complexity
Authentication
NETWORK MEDIUM SINGLE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
PARTIAL NONE NONE

CVE References

Description Tags Link
CORS `Access-Control-Allow-Origin` settings are too lenient · Advisory · wireapp/wire-server · GitHub github.com
text/html
URL Logo CONFIRM github.com/wireapp/wire-server/security/advisories/GHSA-v7xx-cx8m-g66p

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationWireWire ServerAllAllAllAll
  • cpe:2.3:a:wire:wire_server:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-41101 : wire-server is an open-source back end for Wire, a secure collaboration platform. Before version 2… twitter.com/i/web/status/1… 2021-09-30 19:24:07
© CVE.report 2021 Twitter Nitter Twitter Viewer |

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