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
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

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. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/01/2023).

Proper firewalling of is able to address this issue.

Productinfo

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Vendor

Name

Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 (🔍)
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: 🔍

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