Vulnerability Monitor

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CVE-2001-0864

Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly handle the implicit "deny ip any any" rule in an outgoing ACL when the ACL contains exactly 448 entries, which can allow some outgoing packets to bypass access restrictions.

Published

2001-12-06T05:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Hardware	cisco	12000_router	*	Yes

References

http://www.ciac.org/ciac/bulletins/m-018.shtml ([email protected])
http://www.cisco.com/warp/public/707/GSR-ACL-pub.shtml Patch, Vendor Advisory ([email protected])
http://www.osvdb.org/1986 ([email protected])
http://www.securityfocus.com/bid/3536 ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/7553 ([email protected])
http://www.ciac.org/ciac/bulletins/m-018.shtml (af854a3a-2127-422b-91ae-364da2661108)
http://www.cisco.com/warp/public/707/GSR-ACL-pub.shtml Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.osvdb.org/1986 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/3536 (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/7553 (af854a3a-2127-422b-91ae-364da2661108)