Security readout for executives and security teams
A very old Check Point Firewall-1 configuration issue let outside attackers reach internal RSH or REXEC clients by sending malformed connection requests when those legacy remote-shell services were enabled through the firewall. In plain terms, a security control that should have blocked risky remote-access traffic could be tricked into passing it through. Exposure is limited to environments still running late-1990s/early-2000s Check Point Firewall-1 versions with RSH/REXEC inspection enabled and legacy r-services reachable behind the firewall. Modern deployments have long since retired these code paths, so real-world exposure today should be minimal but non-zero in unmanaged legacy segments. Low priority for modern estates. This is a 25-year-old firewall configuration flaw; treat it as legacy hygiene rather than an urgent incident. Only elevate priority if inventory confirms Firewall-1 of that era is still in production or if legacy r-services remain reachable from untrusted networks. Mitigation focus: Follow the Check Point advisory referenced in the bundle and apply any vendor-supplied fix for Firewall-1 RSH/REXEC handling.; Disable RSH/REXEC inspection on Firewall-1 if the legacy r-services are not required in the environment.; Block or filter inbound RSH (TCP 514) and REXEC (TCP 512) at the perimeter and internal enforcement points..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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CVE-2000-0779 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
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- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
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Source materials
- CVE List V5 sourceCVE List V5
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CWE details
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