Gitpod: Origin Validation Error
CVE-2023-0957 is a critical-severity origin validation error vulnerability in Gitpod, with a CVSS 3.1 base score of 9.6 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. The record lists version 2022.11.2 as the first without the flaw, so updating Gitpod to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.42% chance of exploitation within 30 days, which is low compared with other CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update Gitpod to 2022.11.2 or a later version.
- Read the advisory on app.safebase.io for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- RequiredA user must take an action such as opening a file or link.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.2 | High | CNA (snyk.io) |
| CVSS 3.1 | 9.6 | Critical | NVD |
Official description
An issue was discovered in Gitpod versions prior to release-2022.11.2.16. There is a Cross-Site WebSocket Hijacking (CSWSH) vulnerability that allows attackers to make WebSocket connections to the Gitpod JSONRPC server using a victim’s credentials, because the Origin header is not restricted. This can lead to the extraction of data from workspaces, to a full takeover of the workspace.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Origin Validation Error
The product does not properly verify that the source of data or communication is valid.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
- github.com/gitpod-io/gitpod/commit/12956988eec0031f42ffdfa3bdc3359f65628f9f
- github.com/gitpod-io/gitpod/commit/673ab6856fa04c13b7b1f2a968e4d090f1d94e4f
- github.com/gitpod-io/gitpod/pull/16378Issue Tracking
- github.com/gitpod-io/gitpod/pull/16405Issue Tracking
- github.com/gitpod-io/gitpod/releases/tag/release-2022.11.2Release Notes
Third-party and government advisories
- snyk.io/blog/gitpod-remote-code-execution-vulnerability-websockets/Third Party Advisory
Recent Origin Validation Error vulnerabilities
- 8.1 High severity
- 9.6 Critical severity
- 7.8 High severity
- 8.8 High severity
- 9.8 Critical severity
- 8.8 High severity
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