website: Exposure of Sensitive Information to an Unauthorized Actor
CVE-2023-36817 is a critical-severity exposure of sensitive information to an unauthorized actor vulnerability in website from Tktchurch, with a CVSS 3.1 base score of 9.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected website versions: = 0.1.0; 0.1.0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.58% 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
- Check which version of website you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on github.com 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.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Tktchurch | website | = 0.1.0; 0.1.0 | Not stated |
| Kingstemple | The King's Temple Church Website | 0.1.0 | Not stated |
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
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | CNA (github.com) |
| CVSS 3.1 | 9.1 | Critical | NVD |
Official description
`tktchurch/website` contains the codebase for The King's Temple Church website. In version 0.1.0, a Stripe API key was found in the public code repository of the church's project. This sensitive information was unintentionally committed and subsequently exposed in the codebase. If an unauthorized party gains access to this key, they could potentially carry out transactions on behalf of the organization, leading to financial losses. Additionally, they could access sensitive customer information, leading to privacy violations and potential legal implications. The affected component is the codebase of our project, specifically the file(s) where the Stripe API key is embedded. The key should have been stored securely, and not committed to the codebase. The maintainers plan to revoke the leaked Stripe API key immediately, generate a new one, and not commit the key to the codebase.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
How developers prevent this class of flaw
- Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
More Exposure of Sensitive Information to an Unauthorized Actor vulnerabilities (CWE-200)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
- github.com/tktchurch/website/security/advisories/GHSA-x3m6-5hmf-5x3wMitigation, Third Party Advisory
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