CVE-2001-0402 IPFilter 3.4.16 and earlier does not include sufficient session information in its cache, which allows remote attackers to bypass access restrictions by sending fragmented packets to a restricted port...
HighCVSS 7.5
EPSS 2.4%
Public exploit
- Published
- Updated
- Exploit status
- Public exploit available
Description
IPFilter 3.4.16 and earlier does not include sufficient session information in its cache, which allows remote attackers to bypass access restrictions by sending fragmented packets to a restricted port after sending unfragmented packets to an unrestricted port.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| darren reed ipfilter | <= 3.4.16 | No fix listed |
| freebsd | <= 4.1 | No fix listed |
| OpenBSD | = 2.8 | No fix listed |
References
- FreeBSD-SA-01:32 patch vendor-advisory
- 20010408 A fragmentation attack against IP Filter mailing-list
- ipfilter-access-ports(6331) vdb-entry