vulnwire
7.5high

CVE-2001-01831 exploit

ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, wh…

Published 25 y ago · modified 4 mo ago · JSON

CVSS
7.5
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
8.1%
percentile 95%
Public exploits
1
Exploit-DB

ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, which makes the packet appear to be part of an established connection.

Exploit prediction (EPSS)

8.09% probability of exploitation in the next 30 days, higher than 95% of all scored CVEs.

Exploits and detections

  • EDB-20593 FreeBSD 3.x/4.x - 'ipfw' Filtering Evasion · remote · 2001-01-23

CVSS scores

Assigned byVersionScoreVector
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

References

  • securityfocus.com /bid/2293 · vdb-entry, x_refsource_BID, x_transferred
  • ciac.org /ciac/bulletins/l-029.shtml · third-party-advisory, government-resource, x_refsource_CIAC, x_transferred
  • security-express.com /archives/bugtraq/2001-01/0424.html · mailing-list, x_refsource_BUGTRAQ, x_transferred
  • exchange.xforce.ibmcloud.com /vulnerabilities/5998 · vdb-entry, x_refsource_XF, x_transferred
  • osvdb.org /1743 · vdb-entry, x_refsource_OSVDB, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.