Information Exposure Affecting fence-agents-sbd package, versions <0:4.10.0-20.el9_0.11
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL9-FENCEAGENTSSBD-6394953
- published6 Mar 2024
- disclosed13 Oct 2023
Introduced: 13 Oct 2023
CVE-2023-45803 (opens in a new tab)How to fix?
Upgrade RHEL:9 fence-agents-sbd to version 0:4.10.0-20.el9_0.11 or higher.
This issue was patched in RHSA-2024:1155.
NVD Description
Note: Versions mentioned in the description apply only to the upstream fence-agents-sbd package and not the fence-agents-sbd package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
urllib3 is a user-friendly HTTP client library for Python. urllib3 previously wouldn't remove the HTTP request body when an HTTP redirect response using status 301, 302, or 303 after the request had its method changed from one that could accept a request body (like POST) to GET as is required by HTTP RFCs. Although this behavior is not specified in the section for redirects, it can be inferred by piecing together information from different sections and we have observed the behavior in other major HTTP client implementations like curl and web browsers. Because the vulnerability requires a previously trusted service to become compromised in order to have an impact on confidentiality we believe the exploitability of this vulnerability is low. Additionally, many users aren't putting sensitive data in HTTP request bodies, if this is the case then this vulnerability isn't exploitable. Both of the following conditions must be true to be affected by this vulnerability: 1. Using urllib3 and submitting sensitive information in the HTTP request body (such as form data or JSON) and 2. The origin service is compromised and starts redirecting using 301, 302, or 303 to a malicious peer or the redirected-to service becomes compromised. This issue has been addressed in versions 1.26.18 and 2.0.7 and users are advised to update to resolve this issue. Users unable to update should disable redirects for services that aren't expecting to respond with redirects with redirects=False and disable automatic redirects with redirects=False and handle 301, 302, and 303 redirects manually by stripping the HTTP request body.
References
- https://access.redhat.com/security/cve/CVE-2023-45803
- https://github.com/urllib3/urllib3/commit/4e98d57809dacab1cbe625fddeec1a290c478ea9
- https://github.com/urllib3/urllib3/security/advisories/GHSA-g4mx-q9vg-27p4
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4R2Y5XK3WALSR3FNAGN7JBYV2B343ZKB/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PPDPLM6UUMN55ESPQWJFLLIZY4ZKCNRX/
- https://www.rfc-editor.org/rfc/rfc9110.html#name-get