CVE-2022-36633
HIGHCVE-2022-36633 is a high-severity (CVSS 8.8) OS Command Injection vulnerability in github.com/gravitational/teleport. 3 public exploit references exist, so weaponization risk is real. O3 Security confirms whether CVE-2022-36633 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Improper token validation leading to code execution in Teleport
Real-World Exposure
github.com/gravitational/teleport🐹github.com/gravitational/teleport🐹github.com/gravitational/teleportReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Teleport 9.3.6 is vulnerable to Command injection leading to Remote Code Execution. An attacker can craft a malicious ssh agent installation link by URL encoding a bash escape with carriage return line feed. This url encoded payload can be used in place of a token and sent to a user in a social engineering attack. This is fully unauthenticated attack utilizing the trusted teleport server to deliver the payload.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/gravitational/teleport | all versions | 8.3.17 |
| 🐹Go | github.com/gravitational/teleport | ≥ 9.0.0&&< 9.3.13 | 9.3.13 |
| 🐹Go | github.com/gravitational/teleport | ≥ 10.0.0&&< 10.1.2 | 10.1.2 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Teleport v10.1.1 - Remote Code Execution (RCE)
by Brandon Roach · Sep 23, 2022
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/gravitational/teleport. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update github.com/gravitational/teleport to 8.3.17 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-36633 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2022-36633 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2022-36633. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2022-36633 in your dependencies?
O3 detects CVE-2022-36633 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.