Cisco IP Phone 8800 Session Initiation Protocol SIP Packet input validation

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.5 | $5k-$25k | 0.00 |
Summary
A vulnerability has been found in Cisco IP Phone 8800 and classified as problematic. This affects an unknown part of the component Session Initiation Protocol. The manipulation as part of SIP Packet leads to input validation. This vulnerability is uniquely identified as CVE-2017-12328. The attack is possible to be carried out remotely. No exploit exists.
Details
A vulnerability was found in Cisco IP Phone 8800 (IP Phone Software) (the affected version unknown) and classified as problematic. This issue affects an unknown part of the component Session Initiation Protocol. The manipulation as part of a SIP Packet leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. Impacted is availability. The summary by CVE is:
A vulnerability in Session Initiation Protocol (SIP) call handling in Cisco IP Phone 8800 Series devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition because the SIP process unexpectedly restarts. All active phone calls are dropped as the SIP process restarts. The vulnerability is due to incomplete input validation of the SIP packet header. An attacker could exploit this vulnerability by sending a malformed SIP packet to a targeted phone. An exploit could allow the attacker to cause a DoS condition because all phone calls are dropped when the SIP process unexpectedly restarts. Cisco Bug IDs: CSCvc62590.
The bug was discovered 11/29/2017. The weakness was disclosed 11/30/2017 with Cisco (Website). The advisory is shared at securitytracker.com. The identification of this vulnerability is CVE-2017-12328 since 08/03/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/25/2021).
The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 102003†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.5VulDB Meta Temp Score: 5.5
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.8
NVD Vector: 🔍
CVSSv2
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Input validationCWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
OpenVAS ID: 860335
OpenVAS Name: Cisco IP Phone 8800 Series Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
08/03/2017 🔍11/29/2017 🔍
11/29/2017 🔍
11/30/2017 🔍
11/30/2017 🔍
11/30/2017 🔍
01/25/2021 🔍
Sources
Vendor: cisco.comAdvisory: securitytracker.com⛔
Researcher: Cisco
Organization: Cisco
Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-12328 (🔍)
GCVE (CVE): GCVE-0-2017-12328
GCVE (VulDB): GCVE-100-110057
SecurityFocus: 102003 - Cisco IP Phone 8800 Series CVE-2017-12328 Denial of Service Vulnerability
SecurityTracker: 1039922
Entry
Created: 11/30/2017 14:39Updated: 01/25/2021 11:18
Changes: 11/30/2017 14:39 (64), 12/11/2019 10:03 (4), 01/25/2021 11:14 (3), 01/25/2021 11:18 (1)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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