Vulnerability · Published Oct 4, 2021 · Assigned by GitHub_M

CVE-2021-41093Account takeover when having only access to a user's short lived token

High 7.4

In plain English

A high-severity security flaw in wire-ios from wireapp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities).

Severity (CVSS 3.1)7.4High

Exploit odds (30 days)1.5%top 25.8% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Wire is an open source secure messenger. In affected versions if the an attacker gets an old but valid access token they can take over an account by changing the email. This issue has been resolved in version 3.86 which uses a new endpoint which additionally requires an authentication cookie. See wire-ios-sync-engine and wire-ios-transport references. This is the root advisory that pulls the changes together.

Affected products (as reported)

Vendor	Product	Versions
wireapp	wire-ios	< 3.86

Weakness: CWE-285 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References

https://github.com/wireapp/wire-ios/security/advisories/GHSA-6f4c-phfj-m255 x_refsource_CONFIRM
https://github.com/wireapp/wire-ios-sync-engine/security/advisories/GHSA-w727-5f74-49xj x_refsource_MISC
https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-p354-6r3m-g4xr x_refsource_MISC
https://github.com/wireapp/wire-server/security/advisories/GHSA-9rm2-w6pq-333m x_refsource_MISC
https://github.com/wireapp/wire-ios/commit/b0e7bb3b13dd8212032cb46e32edf701694687c7 x_refsource_MISC