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Bugzilla CVE-2014-1572

MEDIUM
Permissions, Privileges, and Access Controls (CWE-264)
2014-10-13 security@mozilla.org
Privilege Escalation Mozilla Fedora Bugzilla Fedoraproject
5.0
CVSS 2.0 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-264
ASVS 5.0
V8 - Authorization Permission and access control
MITRE ATT&CK

1 technique across 1 tactic: 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 5.0 (MEDIUM). Attack characteristics: network attack vector, low complexity. EPSS exploitation probability: 1.10%.
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 1.1% exploitation probability (EPSS)

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AnalysisAI

The confirm_create_account function in the account-creation feature in token.cgi in Bugzilla 2.x through 4.0.x before 4.0.15, 4.1.x and 4.2.x before 4.2.11, 4.3.x and 4.4.x before 4.4.6, and 4.5.x. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, 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-264. The confirm_create_account function in the account-creation feature in token.cgi in Bugzilla 2.x through 4.0.x before 4.0.15, 4.1.x and 4.2.x before 4.2.11, 4.3.x and 4.4.x before 4.4.6, and 4.5.x before 4.5.6 does not specify a scalar context for the realname parameter, which allows remote attackers to create accounts with unverified e-mail addresses by sending three realname values with realname=login_name as the second, as demonstrated by selecting an e-mail address with a domain name for which group privileges are automatically granted. Affected products include: Fedoraproject Fedora, Mozilla Bugzilla. Version information: through 4.0..

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Severity by source

NVD PRIMARY 5.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

DescriptionCVE.org

The confirm_create_account function in the account-creation feature in token.cgi in Bugzilla 2.x through 4.0.x before 4.0.15, 4.1.x and 4.2.x before 4.2.11, 4.3.x and 4.4.x before 4.4.6, and 4.5.x before 4.5.6 does not specify a scalar context for the realname parameter, which allows remote attackers to create accounts with unverified e-mail addresses by sending three realname values with realname=login_name as the second, as demonstrated by selecting an e-mail address with a domain name for which group privileges are automatically granted.

Threat Intelligence Overview

EPSS Score
1.1%
Top 22% 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 1.1%
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
No
Human Impact· derived
Medium

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +25
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

Affected Products (CPE)CVE.org

cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.8:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.9:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.10:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.12:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16:rc1:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16:rc2:*:*:*:*:*:*
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References

Advisories & patches
PATCH https://bugzilla.mozilla.org/show_bug.cgi?id=1074812 ADVISORY http://www.bugzilla.org/security/4.0.14/ REF http://advisories.mageia.org/MGASA-2014-0412.html REF http://blog.gerv.net/2014/10/new-class-of-vulnerability-in-perl-web-applications/ REF http://lists.fedoraproject.org/pipermail/package-announce/2014-November/142524.html REF http://lists.fedoraproject.org/pipermail/package-announce/2014-October/141309.html REF http://lists.fedoraproject.org/pipermail/package-announce/2014-October/141321.html REF http://openwall.com/lists/oss-security/2014/10/07/20 REF http://packetstormsecurity.com/files/128578/Bugzilla-Account-Creation-XSS-Information-Leak.html REF http://www.mandriva.com/security/advisories?name=MDVSA-2014:200 REF http://www.opennet.ru/opennews/art.shtml?num=40766 REF http://www.reddit.com/r/netsec/comments/2ihen0/new_class_of_vulnerability_in_perl_web/ REF http://www.securitytracker.com/id/1030978 REF https://security.gentoo.org/glsa/201607-11

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