Otrs
CVE-2021-21439
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Lifecycle Timeline
1DescriptionNVD
DoS attack can be performed when an email contains specially designed URL in the body. It can lead to the high CPU usage and cause low quality of service, or in extreme case bring the system to a halt. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.26 and prior versions; 8.0.x version 8.0.13 and prior versions.
AnalysisAI
DoS attack can be performed when an email contains specially designed URL in the body. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-754. DoS attack can be performed when an email contains specially designed URL in the body. It can lead to the high CPU usage and cause low quality of service, or in extreme case bring the system to a halt. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.26 and prior versions; 8.0.x version 8.0.13 and prior versions. Affected products include: Otrs. Version information: version 6.0.1.
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.
In OTRS 6.0.x up to and including 6.0.1, OTRS 5.0.x up to and including 5.0.24, and OTRS 4.0.x up to and including 4.0.2
In the Admin Package Manager in Open Ticket Request System (OTRS) 5.0.0 through 5.0.24 and 6.0.0 through 6.0.1, authenti
Multiple cross-site request forgery (CSRF) vulnerabilities in (1) CustomerPreferences.pm, (2) CustomerTicketMessage.pm,
Open Ticket Request System (OTRS) 3.3.9 has XSS in index.pl?Action=AgentStats requests, as demonstrated by OrderBy=[XSS]
Improper Input Validation vulnerability in the upload functionality for user avatars allows functionality misuse due to
Improper Input Validation vulnerability in OTRS AG OTRS, OTRS AG ((OTRS)) Community Edition allows SQL Injection via Tic
Cross-site scripting (XSS) vulnerability in Open Ticket Request System (OTRS) Help Desk 2.4.x before 2.4.15, 3.0.x befor
Unauthenticated SQL injection in OTRS and the legacy ((OTRS)) Community Edition database layer enables authentication by
The functions to fetch e-mail via POP3 or IMAP as well as sending e-mail via SMTP use OpenSSL for static SSL or TLS base
In Open Ticket Request System (OTRS) 3.3.x through 3.3.16, 4.x through 4.0.23, and 5.x through 5.0.19, an attacker with
Code injection exists in Kernel/System/Spelling.pm in Open Ticket Request System (OTRS) 5 before 5.0.24, 4 before 4.0.26
Cross-site scripting (XSS) vulnerability in Open Ticket Request System (OTRS) 3.1.x before 3.1.20, 3.2.x before 3.2.15,
Same technique Information Disclosure
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External POC / Exploit Code
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