Cisco Unified Communications Manager Session Initiation Protocol SIP Packet out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco Unified Communications Manager. The affected element is an unknown function of the component Session Initiation Protocol. The manipulation as part of SIP Packet results in out-of-bounds write. This vulnerability was named CVE-2019-1887. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Unified Communications Manager (Unified Communication Software) (affected version unknown). It has been classified as problematic. Affected is an unknown functionality of the component Session Initiation Protocol. The manipulation as part of a SIP Packet leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. CVE summarizes:

A vulnerability in the Session Initiation Protocol (SIP) protocol implementation of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of input SIP traffic. An attacker could exploit this vulnerability by sending a malformed SIP packet to an affected Cisco Unified Communications Manager. A successful exploit could allow the attacker to trigger a new registration process on all connected phones, temporarily disrupting service.

The weakness was presented 07/06/2019 as cisco-sa-20190703-cucm-dos as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability is traded as CVE-2019-1887 since 12/06/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 8.6
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2018 🔍
07/06/2019 +212 days 🔍
07/06/2019 +0 days 🔍
10/18/2023 +1565 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20190703-cucm-dos
Status: Confirmed

CVE: CVE-2019-1887 (🔍)
GCVE (CVE): GCVE-0-2019-1887
GCVE (VulDB): GCVE-100-137418

Entryinfo

Created: 07/06/2019 10:09
Updated: 10/18/2023 08:08
Changes: 07/06/2019 10:09 (40), 07/01/2020 20:32 (18), 10/18/2023 08:08 (14)
Complete: 🔍
Cache ID: 216::103

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