VDB-131692 · CVE-2018-0389 · BID 107402

Cisco Small Business SPA514G IP Phone up to 7.6.2SR2 Session Initiation Protocol SIP Request Unresponsive resource management

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Cisco Small Business SPA514G IP Phone up to 7.6.2SR2. Affected by this vulnerability is an unknown functionality of the component Session Initiation Protocol. Executing a manipulation as part of SIP Request can lead to resource management (Unresponsive). This vulnerability is tracked as CVE-2018-0389. The attack can be launched remotely. No exploit exists. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability has been found in Cisco Small Business SPA514G IP Phone up to 7.6.2SR2 (IP Phone Software) and classified as critical. This vulnerability affects an unknown functionality of the component Session Initiation Protocol. The manipulation as part of a SIP Request leads to a resource management vulnerability (Unresponsive). The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. CVE summarizes:

A vulnerability in the implementation of Session Initiation Protocol (SIP) processing in Cisco Small Business SPA514G IP Phones could allow an unauthenticated, remote attacker to cause an affected device to become unresponsive, resulting in a denial of service (DoS) condition. The vulnerability is due to improper processing of SIP request messages by an affected device. An attacker could exploit this vulnerability by sending crafted SIP messages to an affected device. A successful exploit could allow the attacker to cause the affected device to become unresponsive, resulting in a DoS condition that persists until the device is restarted manually. Cisco has not released software updates that address this vulnerability. This vulnerability affects Cisco Small Business SPA514G IP Phones that are running firmware release 7.6.2SR2 or earlier.

The bug was discovered 03/13/2019. The weakness was disclosed 03/13/2019 as cisco-sa-20190313-sip as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2018-0389 since 11/27/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

Proper firewalling of is able to address this issue.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.5
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Unresponsive
Class: Resource management / Unresponsive
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/27/2017 🔍
03/13/2019 +471 days 🔍
03/13/2019 +0 days 🔍
03/14/2019 +1 days 🔍
08/01/2023 +1601 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20190313-sip
Status: Confirmed

CVE: CVE-2018-0389 (🔍)
GCVE (CVE): GCVE-0-2018-0389
GCVE (VulDB): GCVE-100-131692
SecurityFocus: 107402

Entryinfo

Created: 03/14/2019 07:12
Updated: 08/01/2023 08:56
Changes: 03/14/2019 07:12 (61), 05/16/2020 11:44 (1), 08/01/2023 08:55 (4), 08/01/2023 08:56 (10)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!