Cisco IP Phone 6800/IP Phone 7800/IP Phone 8800 up to 12.0.4 XML out-of-bounds write

Summaryinfo

A vulnerability classified as critical was found in Cisco IP Phone 6800, IP Phone 7800 and IP Phone 8800. This impacts an unknown function of the component XML Handler. Such manipulation leads to out-of-bounds write. This vulnerability is documented as CVE-2024-20357. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco IP Phone 6800, IP Phone 7800 and IP Phone 8800. Affected by this issue is an unknown function of the component XML Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the XML service of Cisco IP Phone firmware could allow an unauthenticated, remote attacker to initiate phone calls on an affected device. This vulnerability exists because bounds-checking does not occur while parsing XML requests. An attacker could exploit this vulnerability by sending a crafted XML request to an affected device. A successful exploit could allow the attacker to initiate calls or play sounds on the device.

The advisory is available at sec.cloudapps.cisco.com. This vulnerability is handled as CVE-2024-20357 since 11/08/2023. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/05/2026).

Upgrading eliminates this vulnerability.

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Productinfo

Type

• IP Phone Software

Vendor

• Cisco

Name

• IP Phone 6800
• IP Phone 7800
• IP Phone 8800

Version

• 4.5
• 4.6
• 4.7.1
• 4.8.1
• 5.0.1
• 5.1
• 5.1.1
• 5.1.2
• 11.0.0
• 11.0.1
• 11.0.2
• 11.1.1
• 11.1.2
• 11.2.1
• 11.2.2
• 11.2.3
• 11.2.4
• 11.3.1
• 11.3.2
• 11.3.3
• 11.3.4
• 11.3.5
• 11.3.6
• 11.3.6SR1
• 11.3.7
• 11.3.7SR1
• 11.3.7SR2
• 12.0.1
• 12.0.2
• 12.0.3
• 12.0.3SR1
• 12.0.4

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

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