Cisco IP Phone 7800/IP Phone 8800 Session Initiation Protocol SIP Packet denial of service

A vulnerability, which was classified as problematic, has been found in Cisco IP Phone 7800 and IP Phone 8800. Affected by this issue is some functionality of the component Session Initiation Protocol. The manipulation as part of a SIP Packet leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. Impacted is availability.

The weakness was released 05/03/2019 as cisco-sa-20190501-phone-sip-xm as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2019-1635 since 12/06/2018. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 05/03/2019).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Vendor

• Cisco

Name

• IP Phone 7800
• IP Phone 8800

• ?
• ?

• ?
• ?

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: ?
VulDB Reliability: ?

VulDB Base Score: ?
VulDB Temp Score: ?
VulDB Reliability: ?
Class: Denial of service (CWE-404)
Local: No
Remote: Yes

Availability: ?
Status: Not defined

Price Prediction: ?
Current Price Estimation: ?

Threat Intelligenceinfoedit

Threat: ?
Adversaries: ?
Geopolitics: ?
Economy: ?
Predictions: ?
Remediation: ?Recommended: no mitigation known
0-Day Time: ?12/06/2018 CVE assigned
05/03/2019 +148 days Advisory disclosed
05/03/2019 +0 days VulDB entry created
05/03/2019 +0 days VulDB last updateAdvisory: cisco-sa-20190501-phone-sip-xm
Status: Confirmed

CVE: CVE-2019-1635 (?)

Created: 05/03/2019 10:01 PM
Complete: ?

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