CVE-2021-41093
In affected versions if the an attacker gets an old but valid access token they can take over an account by changing the email.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.49% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-285, CWE-863
- Affected
- wire/wire
- Source
- security-advisories@github.com
References
- https://github.com/wireapp/wire-ios-sync-engine/security/advisories/GHSA-w727-5f74-49xjBroken Link
- https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-p354-6r3m-g4xrBroken Link
- https://github.com/wireapp/wire-ios/commit/b0e7bb3b13dd8212032cb46e32edf701694687c7Patch, Third Party Advisory
- https://github.com/wireapp/wire-ios/security/advisories/GHSA-6f4c-phfj-m255Third Party Advisory
- https://github.com/wireapp/wire-server/security/advisories/GHSA-9rm2-w6pq-333mThird Party Advisory
- https://github.com/wireapp/wire-ios-sync-engine/security/advisories/GHSA-w727-5f74-49xjBroken Link
- https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-p354-6r3m-g4xrBroken Link
- https://github.com/wireapp/wire-ios/commit/b0e7bb3b13dd8212032cb46e32edf701694687c7Patch, Third Party Advisory
- https://github.com/wireapp/wire-ios/security/advisories/GHSA-6f4c-phfj-m255Third Party Advisory
- https://github.com/wireapp/wire-server/security/advisories/GHSA-9rm2-w6pq-333mThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.