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Telepresence Video Communication Server CVE-2014-0675

MEDIUM
Credentials Management Errors (CWE-255)
2014-01-23 psirt@cisco.com
Authentication Bypass Cisco Telepresence Video Communication Server
6.4
CVSS 2.0 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-255
ASVS 5.0
V6 - Authentication Credentials management errors
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

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 6.4 (MEDIUM). Attack characteristics: network attack vector, low complexity. EPSS exploitation probability: 0.45%.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAI

The Expressway component in Cisco TelePresence Video Communication Server (VCS) uses the same default X.509 certificate across different customers' installations, which makes it easier for remote. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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Technical ContextAI · show details

This vulnerability is classified under CWE-255. The Expressway component in Cisco TelePresence Video Communication Server (VCS) uses the same default X.509 certificate across different customers' installations, which makes it easier for remote attackers to conduct man-in-the-middle attacks against SSL sessions by leveraging the certificate's trust relationship, aka Bug ID CSCue07471. Affected products include: Cisco Telepresence Video Communication Server.

Severity by source

NVD PRIMARY 6.4 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Confidentiality
P
Integrity
P
Availability
None

DescriptionCVE.org

The Expressway component in Cisco TelePresence Video Communication Server (VCS) uses the same default X.509 certificate across different customers' installations, which makes it easier for remote attackers to conduct man-in-the-middle attacks against SSL sessions by leveraging the certificate's trust relationship, aka Bug ID CSCue07471.

Threat Intelligence Overview

EPSS Score
0.4%
Top 36% 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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)CVE.org

cpe:2.3:h:cisco:telepresence_video_communication_server:-:*:*:*:*:*:*:*

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Same weakness CWE-255 – Credentials Management Errors

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Same technique Authentication Bypass

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References

Advisories & patches
ADVISORY http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-0675 ADVISORY http://tools.cisco.com/security/center/viewAlert.x?alertId=32540 REF http://osvdb.org/102377 REF http://secunia.com/advisories/56621 REF http://www.securityfocus.com/bid/65101 REF http://www.securitytracker.com/id/1029682 REF https://exchange.xforce.ibmcloud.com/vulnerabilities/90650

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