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Tivoli Storage Manager CVE-2015-4951

MEDIUM
Improper Input Validation (CWE-20)
2016-01-20 psirt@us.ibm.com
Denial Of Service IBM Tivoli Storage Manager
5.3
CVSS 3.0 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-20
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Impact

CVSS score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.54%.
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).
Patch available 0.5% exploitation probability (EPSS)

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AnalysisAI

Client Acceptor Daemon (CAD) in the client in IBM Spectrum Protect (formerly Tivoli Storage Manager) 5.5 and 6.x before 6.3.2.5, 6.4 before 6.4.3.1, and 7.1 before 7.1.3 allows remote attackers to. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

This vulnerability is classified under CWE-20. Client Acceptor Daemon (CAD) in the client in IBM Spectrum Protect (formerly Tivoli Storage Manager) 5.5 and 6.x before 6.3.2.5, 6.4 before 6.4.3.1, and 7.1 before 7.1.3 allows remote attackers to cause a denial of service (daemon crash) via a crafted Web client URL. Affected products include: Ibm Tivoli Storage Manager. Version information: before 6.3.2.5.

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Severity by source

NVD PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

DescriptionCVE.org

Client Acceptor Daemon (CAD) in the client in IBM Spectrum Protect (formerly Tivoli Storage Manager) 5.5 and 6.x before 6.3.2.5, 6.4 before 6.4.3.1, and 7.1 before 7.1.3 allows remote attackers to cause a denial of service (daemon crash) via a crafted Web client URL.

Threat Intelligence Overview

EPSS Score
0.5%
Top 32% 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 0.5%
Patch available Yes
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
Yes
Human Impact· derived
Medium

Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:a:ibm:tivoli_storage_manager:5.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager:6.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager:6.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager:6.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager:6.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager:7.1:*:*:*:*:*:*:*

More in Tivoli Storage Manager

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CVE-2016-8937 CRITICAL
9.8 Oct 05

The IBM Tivoli Storage Manager (IBM Spectrum Protect 7.1 and 8.1) default authentication protocol is vulnerable to a bru
CVE-2016-8940 HIGH
8.8 Mar 07

IBM Tivoli Storage Manager (IBM Spectrum Protect) 6.1, 6.2, 6.3, and 7.1 does not perform sufficient authority checking

CVE-2016-6045 HIGH
8.8 Feb 01

IBM Tivoli Storage Manager Operations Center is vulnerable to cross-site request forgery which could allow an attacker t
CVE-2016-5985 HIGH
7.8 Feb 01

The IBM Tivoli Storage Manager (IBM Spectrum Protect) AIX client is vulnerable to a buffer overflow when Journal-Based B
CVE-2017-1378 HIGH
7.8 Oct 05

IBM Spectrum Protect 7.1 and 8.1 (formerly Tivoli Storage Manager) disclosed unencrypted login credentials to Vmware vCe
CVE-2016-8998 HIGH
7.2 Feb 24

IBM Tivoli Storage Manager Server 7.1 could allow an authenticated user with TSM administrator privileges to cause a buf
CVE-2018-1786 HIGH
7.5 Nov 12

IBM Spectrum Protect 7.1 and 8.1 dsmc and dsmcad processes incorrectly accumulate TCP/IP sockets in a CLOSE_WAIT state.

CVE-2013-2964 HIGH
7.2 Oct 04

Buffer overflow in dsmtca in IBM Tivoli Storage Manager (TSM) through 5.5.4.0, 6.1.0 through 6.1.5.4, 6.2.0 through 6.2.
CVE-2014-6185 HIGH
7.2 Feb 13

dsmtca in the client in IBM Tivoli Storage Manager (TSM) 6.3 before 6.3.2.3, 6.4 before 6.4.2.2, and 7.1 before 7.1.1.3

CVE-2014-6184 HIGH
7.2 Feb 22

Stack-based buffer overflow in dsmtca in the client in IBM Tivoli Storage Manager (TSM) 5.4 through 5.4.3.6, 5.5 through
CVE-2015-4927 HIGH
7.2 Nov 04

The Reporting and Monitoring component in Tivoli Monitoring in IBM Tivoli Storage Manager 6.3 before 6.3.6 and 7.1 befor
CVE-2016-6043 HIGH
7.0 Feb 01

Tivoli Storage Manager Operations Center could allow a local user to take over a previously logged in user due to sessio

Same weakness CWE-20 – Improper Input Validation

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CVE-2023-22515 CRITICAL POC
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CVE-2009-0927 HIGH POC
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CVE-2017-9791 CRITICAL POC
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CVE-2017-15944 CRITICAL POC
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CVE-2019-0604 CRITICAL POC
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Same technique Denial Of Service

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CVE-2015-5119 CRITICAL POC
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CVE-2011-2462 CRITICAL POC
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CVE-2011-0611 HIGH POC
8.8
CVE-2012-1889 HIGH POC
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CVE-2012-0507 CRITICAL POC
9.8
CVE-2014-1761 HIGH POC
7.8
CVE-2015-5122 CRITICAL POC
9.8
CVE-2011-0609 HIGH POC
7.8

References

Advisories & patches
PATCH http://www-01.ibm.com/support/docview.wss?uid=swg21973484 REF http://www.securitytracker.com/id/1034692

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