Croc
CVE-2023-43619
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V5 - File Handling File type validation, storage isolation
MITRE ATT&CK
2 techniques across 2 tactics: Command and Control, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A local attacker with access to the system could upload malicious files that can be executed on the server. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
An issue was discovered in Croc through 9.6.5. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 4 packages in go
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. An issue was discovered in Croc through 9.6.5. A sender may send dangerous new files to a receiver, such as executable content or a .ssh/authorized_keys file. Affected products include: Schollz Croc. Version information: through 9.6.5..
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
An issue was discovered in Croc through 9.6.5. A sender may send dangerous new files to a receiver, such as executable content or a .ssh/authorized_keys file.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Malicious file upload attacks exploit insufficient validation when web applications accept user-provided files.
Affected Products (CPE)NVD
An issue was discovered in Croc through 9.6.5. Rated high severity (CVSS 7.8), this vulnerability is no authentication r
An issue was discovered in Croc through 9.6.5. Rated medium severity (CVSS 5.5), this vulnerability is no authentication
An issue was discovered in Croc through 9.6.5. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploita
An issue was discovered in Croc through 9.6.5. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploita
An issue was discovered in Croc through 9.6.5. Rated medium severity (CVSS 4.7). Public exploit code available and no ve
Silent file overwrite and delete-and-replace in the croc receiver's working directory is possible when a remote sender n
Exploit-DB