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Unified Communications Manager CVE-2013-3462

HIGH
Buffer Overflow (CWE-119)
2013-08-25 psirt@cisco.com
RCE Buffer Overflow Cisco Unified Communications Manager
8.5
CVSS 2.0 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-119
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, buffer size validation
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 8.5 (HIGH). Attack characteristics: network attack vector, M complexity. EPSS exploitation probability: 8.76%.
Exploit ScenarioDerived

A remote attacker could corrupt memory to execute arbitrary code or crash the application by sending crafted requests to the affected application.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 8.8% exploitation probability (EPSS)

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AnalysisAI

Buffer overflow in Cisco Unified Communications Manager (Unified CM) 7.1(x) before 7.1(5b)su6, 8.5(x) before 8.5(1)su6, 8.6(x) before 8.6(2a)su3, and 9.x before 9.1(2) allows remote authenticated. Rated high severity (CVSS 8.5), this vulnerability is remotely exploitable. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.

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Technical ContextAI · show details

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. Buffer overflow in Cisco Unified Communications Manager (Unified CM) 7.1(x) before 7.1(5b)su6, 8.5(x) before 8.5(1)su6, 8.6(x) before 8.6(2a)su3, and 9.x before 9.1(2) allows remote authenticated users to execute arbitrary code via unspecified vectors, aka Bug ID CSCud54358. Affected products include: Cisco Unified Communications Manager. Version information: before 7.1.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 8.5 HIGH
AV:N/AC:M/Au:S/C:C/I:C/A:C

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
M
Confidentiality
C
Integrity
C
Availability
C

DescriptionCVE.org

Buffer overflow in Cisco Unified Communications Manager (Unified CM) 7.1(x) before 7.1(5b)su6, 8.5(x) before 8.5(1)su6, 8.6(x) before 8.6(2a)su3, and 9.x before 9.1(2) allows remote authenticated users to execute arbitrary code via unspecified vectors, aka Bug ID CSCud54358.

Threat Intelligence Overview

EPSS Score
8.8%
Top 7% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 8.8%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

51
Low Medium High Critical
KEV: 0
EPSS: +9
CVSS: +42
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:a:cisco:unified_communications_manager:8.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:8.6\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:8.6\(1a\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:8.6\(2\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:8.6\(2a\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:8.6\(2a\)su1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:8.6\(2a\)su2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:9.1\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:9.1\(1a\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:9.1.1\(a\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:7.1\(2a\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:7.1\(2a\)su1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:7.1\(2b\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:7.1\(2b\)su1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\)su1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3a\)su1a:*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3b\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:7.1\(3b\)su1:*:*:*:*:*:*:*
+ 20 more

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Same weakness CWE-119 – Buffer Overflow

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Same technique RCE

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References

Advisories & patches
ADVISORY http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130821-cucm REF http://www.securitytracker.com/id/1028938

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