Home/CVE/Cisco PIX 6.3 and 7.0 allows remote attackers to cause a denial of service (blocked new connections) via spoofed TCP pac
CVE

CVE-2005-3774

Cisco PIX 6.3 and 7.0 allows remote attackers to cause a denial of service (blocked new connections) via spoofed TCP pac

Cisco PIX 6.3 and 7.0 allows remote attackers to cause a denial of service (blocked new connections) via spoofed TCP packets that cause the PIX to create embryonic connections that would not produce a valid connection with the end system, including (1) SYN packets with invalid checksums, which do not result in a RST.

or, from an external interface, (2) one byte of "meaningless data," or (3) a TTL that is one less than needed to reach the internal destination.

MEDIUM · CVSS 5 EPSS 0.35143
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 3% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
▤

Affected Products & Versions

1
cisco pixall versions
⚠

Public Exploits & PoCs

2
dosCisco PIX - Spoofed TCP SYN Packets Remote Denial of Serviceverified
dosCisco PIX - TCP SYN Packet Denial of Serviceverified
▣

Scoring & Timeline

5
MEDIUM · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Published to NVD23 Nov 2005 · 12:03 AM
🔗

References & Sources

16
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.grok.org.uk/pipermail/full-disclosure/2005-November/038971.htmlVendor Advisory
http://lists.grok.org.uk/pipermail/full-disclosure/2005-November/038983.html
http://secunia.com/advisories/17670
http://securitytracker.com/id?1015256
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_security_notice09186a0080624a37.html
http://www.cisco.com/warp/public/707/cisco-response-20051122-pix.shtml
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