CVE-2007-2688

Severity

78%

Complexity

99%

Confidentiality

115%

The Cisco Intrusion Prevention System (IPS) and IOS with Firewall/IPS Feature Set do not properly handle certain full-width and half-width Unicode character encodings, which might allow remote attackers to evade detection of HTTP traffic.

The Cisco Intrusion Prevention System (IPS) and IOS with Firewall/IPS Feature Set do not properly handle certain full-width and half-width Unicode character encodings, which might allow remote attackers to evade detection of HTTP traffic.

CVSS 2.0 Base Score 7.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C).

Overview

Type

Cisco

First reported 17 years ago

2007-05-16 01:19:00

Last updated 6 years ago

2018-10-30 16:26:00

Affected Software

Cisco IPS Sensor Software 4.0

4.0

Cisco IPS Sensor Software 5.0(1)

5.0\(1\)

Cisco IPS Sensor Software 5.0(2)

5.0\(2\)

Cisco IPS Sensor Software 5.0(6)p1

5.0\(6\)p1

Cisco IPS Sensor Software 5.1(1)

5.1\(1\)

Cisco IPS Sensor Software 5.1(1a)

5.1\(1a\)

Cisco IPS Sensor Software 5.1(1b)

5.1\(1b\)

Cisco IPS Sensor Software 5.1(1c)

5.1\(1c\)

Cisco IPS Sensor Software 5.1(1d)

5.1\(1d\)

Cisco IPS Sensor Software 5.1(1e)

5.1\(1e\)

Cisco IPS Sensor Software 5.1(p1)

5.1\(p1\)

Cisco IOS 10.0

10.0

Cisco IOS 11.1CC

11.1cc

Cisco IOS 11.3

11.3

Cisco IOS 12.0

12.0

Cisco IOS 12.0S

12.0s

Cisco IOS 12.0ST

12.0st

Cisco IOS 12.0T

12.0t

Cisco IOS 12.1

12.1

Cisco IOS 12.1E

12.1e

Cisco IOS 12.1T

12.1t

Cisco IOS 12.2

12.2

Cisco IOS 12.2T

12.2t

References

25285

Vendor Advisory

20070514 HTTP Full-Width and Half-Width Unicode Encoding Evasion

http://www.gamasec.net/english/gs07-01.html

VU#739224

US Government Resource

35336

20070515 GS07-01 Full-Width and Half-Width Unicode Encoding IDS/IPS/WAF Bypass Vulnerability

23980

1018053

1018054

ADV-2007-1803

cisco-scanengine-unicode-security-bypass(34277)

oval:org.mitre.oval:def:5465

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