CWE
20
Advisory Published
Updated

CVE-2007-4430: Input Validation

First published: Mon Aug 20 2007(Updated: )

Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a denial of service (device restart and BGP routing table rebuild) via certain regular expressions in a "show ip bgp regexp" command. NOTE: unauthenticated remote attacks are possible in environments with anonymous telnet and Looking Glass access.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Cisco CLI
Cisco CBOS
Cisco CBOS=12.1
Cisco CBOS=12.2
Cisco Intrusion Detection System (IDS)
Cisco IOS=10.0
Cisco IOS=10.3
Cisco IOS=11.0
Cisco IOS=11.1
Cisco IOS=11.2
Cisco IOS=12.0
Cisco IOS=12.1
Cisco IOS=12.2
Cisco IOS=12.3
Cisco IOS=12.4
Cisco IOS XRv 9000
Cisco IOS XRv 9000=2.0
Cisco IOS XRv 9000=3.0
Cisco IOS XRv 9000=3.1
Cisco IOS XRv 9000=3.2
Cisco IOS XRv 9000=3.3
Cisco IOS XRv 9000=3.4

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Frequently Asked Questions

  • What is the severity of CVE-2007-4430?

    CVE-2007-4430 is classified as a high severity vulnerability due to its potential to cause a denial of service.

  • How do I fix CVE-2007-4430?

    To fix CVE-2007-4430, upgrade your Cisco IOS to a version that resolves the issue, as recommended by Cisco.

  • What types of devices are affected by CVE-2007-4430?

    CVE-2007-4430 affects various Cisco IOS versions, including those from 12.0 to 12.4.

  • Can CVE-2007-4430 be exploited remotely?

    Yes, CVE-2007-4430 can be exploited remotely by unauthenticated attackers.

  • What impact does CVE-2007-4430 have on BGP?

    CVE-2007-4430 can lead to device restarts and BGP routing table rebuilds, impacting network stability.

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