CVE-2023-5968 Password hash in response body after username update
Medium 4.9
Published
Updated
Check this codebase for CVE-2023-5968 and fix it if it is affected.
What it is: CVE-2023-5968 is a medium-severity vulnerability in Mattermost Mattermost, published on 6 Nov 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-5968 in the wild and no public exploit code.
Affected packages and fixed versions:
- github.com/mattermost/mattermost/server/v8 (Go): affected all versions; fixed in 8.0.0-20230825233148-f787fd63368a
- github.com/mattermost/mattermost/server/v8 (Go): affected all versions; fixed in 8.0.0-20230825233148-f787fd63368a
- github.com/mattermost/mattermost/server/v8 (Go): affected from 8.0.0; fixed in 8.0.4
- github.com/mattermost/mattermost/server/v8 (Go): affected from 8.0.0; fixed in 8.0.4
- github.com/mattermost/mattermost/server/v8 (Go): affected from 8.1.0; fixed in 8.1.3
- github.com/mattermost/mattermost/server/v8 (Go): affected from 8.1.0; fixed in 8.1.3
- github.com/mattermost/mattermost/server/v8 (Go): affected from 9.0.0; fixed in 9.0.1
- github.com/mattermost/mattermost/server/v8 (Go): affected from 9.0.0; fixed in 9.0.1
- github.com/mattermost/mattermost-server (Go): affected all versions; fixed in 5.3.2-0.20230825233148-f787fd63368a
- github.com/mattermost/mattermost-server (Go): affected all versions; fixed in 5.3.2-0.20230825233148-f787fd63368a
- github.com/mattermost/mattermost-server/v5 (Go): affected all versions; fixed in 5.3.2-0.20230825233148-f787fd63368a
- github.com/mattermost/mattermost-server/v5 (Go): affected all versions; fixed in 5.3.2-0.20230825233148-f787fd63368a
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2023-5968/ (Markdown: https://insights.sbomify.com/CVE-2023-5968/index.md)
Attackers can obtain password hashes from API responses when updating usernames, potentially enabling offline cracking attacks.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-5968?
CVE-2023-5968 is a medium-severity vulnerability in Mattermost Mattermost, published on 6 Nov 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Mattermost fails to properly sanitize the user object when updating the username, resulting in the password hash being included in the response body.
Which versions are affected by CVE-2023-5968?
16 open source packages ship an affected version, including github.com/mattermost/mattermost/server/v8, github.com/mattermost/mattermost-server and github.com/mattermost/mattermost-server/v5. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/mattermost/mattermost/server/v8 Go | All versions | 8.0.0-20230825233148-f787fd63368a |
github.com/mattermost/mattermost/server/v8 Go | All versions | 8.0.0-20230825233148-f787fd63368a |
github.com/mattermost/mattermost/server/v8 Go | From 8.0.0 | 8.0.4 |
github.com/mattermost/mattermost/server/v8 Go | From 8.0.0 | 8.0.4 |
github.com/mattermost/mattermost/server/v8 Go | From 8.1.0 | 8.1.3 |
github.com/mattermost/mattermost/server/v8 Go | From 8.1.0 | 8.1.3 |
10 more packages
github.com/mattermost/mattermost/server/v8 Go | From 9.0.0 | 9.0.1 |
github.com/mattermost/mattermost/server/v8 Go | From 9.0.0 | 9.0.1 |
github.com/mattermost/mattermost-server Go | All versions | 5.3.2-0.20230825233148-f787fd63368a |
github.com/mattermost/mattermost-server Go | All versions | 5.3.2-0.20230825233148-f787fd63368a |
github.com/mattermost/mattermost-server/v5 Go | All versions | 5.3.2-0.20230825233148-f787fd63368a |
github.com/mattermost/mattermost-server/v5 Go | All versions | 5.3.2-0.20230825233148-f787fd63368a |
github.com/mattermost/mattermost-server/v6 Go | All versions | 5.3.2-0.20230825233148-f787fd63368a |
github.com/mattermost/mattermost-server/v6 Go | All versions | 5.3.2-0.20230825233148-f787fd63368a |
github.com/mattermost/mattermost-server/v6 Go | From 5.4.0-rc1 | 7.8.12 |
github.com/mattermost/mattermost-server/v6 Go | From 5.4.0-rc1 | 7.8.12 |
Products include Mattermost Mattermost.
How do I fix CVE-2023-5968?
Upgrade github.com/mattermost/mattermost/server/v8 to a fixed version for your release line: 8.0.0-20230825233148-f787fd63368a, 8.0.4, 8.1.3 or 9.0.1.
Is CVE-2023-5968 being exploited?
There is no known exploitation of CVE-2023-5968 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Mattermost Mattermost
- CVE-2019-20851 Path traversal in n/a
- CVE-2024-39274 Malicious remote can add users to arbitrary teams and channels
- CVE-2024-39777 Malicious remote can invite itself to an arbitrary local channel
- CVE-2024-39830 Timing attack during remote cluster token comparison when shared channels are enabled
- CVE-2023-3615 Lack of server certificate validation in websockets connection
Sources
Also known as GHSA-r67m-mf7v-qp7j.