VAR-200212-0665
Vulnerability from variot - Updated: 2025-04-03 19:45Check Point FireWall-1 4.1 and Next Generation (NG), with UserAuth configured to proxy HTTP traffic only, allows remote attackers to pass unauthorized HTTPS, FTP and possibly other traffic through the firewall. Firewall-1 is an enterprise level firewall package distributed by Check Point Technologies. It is available for the Unix, Linux, and Microsoft Windows platforms. It has been reported that Firewall-1 does not properly check the contents of sessions when passed through the HTTP proxy server. It is possible for a remote user with access to the proxy server through an authenticated user account to pass protocols through the system that violate security policy. These protocols include FTP, and HTTPS. It should also be noted that this vulnerability affects the HTTPS proxy for Firewall-1. Remote attackers can use this vulnerability to communicate externally through the HTTP proxy server using multiple protocols. When FW-1 is installed using \"out the box\" and set with the following rules: Source Destination Service Action Track AllUsers@SomeNet webserver http UserAuth Long Allow Auth HTTP Any firewall Any drop Long Stealth Rule Any Any Any drop Long CleanUp Rule When Firewall-1 operates using UserAuth, the communication is handled by the security service module, and in the case of an HTTP proxy, by the HTTP security service module (in.ahttpd). However, the default HTTP security service module lacks correct inspection of the session content, which can cause the authenticated user to communicate through this proxy server using different protocols such as (HTTPS, FTP). Firewall-1 using SP6 has made some corrections on this issue. For the SP6 system installed by default, if the HTTP protocol is only allowed to pass through, using the HTTPS protocol to access the site may cause rule conflicts and access failures, and error Information is logged to log files, but FTP protocol communications are still accessible through the HTTP proxy service
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.