Cisco IOS 15.5(3)M on CUBE SIP resource management
|CVSS Meta Temp Score|
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|Current Exploit Price (≈)|
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|CTI Interest Score|
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A vulnerability, which was classified as problematic, has been found in Cisco IOS 15.5(3)M on CUBE (Router Operating System). Affected by this issue is an unknown functionality of the component SIP Handler. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. CVE summarizes:
The SIP implementation in Cisco IOS 15.5(3)M on Cisco Unified Border Element (CUBE) devices allows remote attackers to cause a denial of service via crafted SIP messages, aka Bug ID CSCuv79202.
The weakness was presented 10/31/2015 as CSCuv79202 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2015-6343 since 08/17/2015. 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 03/01/2018).
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 Vulnerability Center (SBV-53992).
CVSSv3VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
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ExploitingClass: Resource management
CWE: CWE-399 / CWE-404
Status: Not defined
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EPSS Percentile: 🔍
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Threat IntelligenceInterest: 🔍
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CountermeasuresRecommended: no mitigation known
0-Day Time: 🔍
10/26/2015 +70 days 🔍
10/27/2015 +1 days 🔍
10/31/2015 +4 days 🔍
10/31/2015 +0 days 🔍
11/02/2015 +2 days 🔍
03/01/2018 +850 days 🔍
CVE: CVE-2015-6343 (🔍)
Vulnerability Center: 53992 - [cisco-sa-20151026-cube] Cisco IOS 15.5(3)M on Cisco Unified Border Element Remote DoS in SIP, High
EntryCreated: 11/02/2015 10:02 AM
Updated: 03/01/2018 10:21 AM
Changes: 11/02/2015 10:02 AM (51), 03/01/2018 10:21 AM (7)
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