CVE-2018-7300Homematic Ccu2 Firmware Path Traversal
Directory Traversal / Arbitrary File Write / Remote Code Execution in the User.setLanguage method in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows remote attackers to write arbitrary files to the device's filesystem.
Published Feb 22, 2018 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2018-7300 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Homematic Ccu2 Firmware (Eq-3).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 31% probability of exploitation in the next 30 days.
- Fixed versions are available, including Homematic Ccu2 Firmware <=2.29.22, Homematic Ccu2 Firmware 2.29.22.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
31%
Higher than 98.2% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
41/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryhttp://atomic111.github.io/article/homematic-ccu2-filewrite
- advisory44361
Description
Directory Traversal / Arbitrary File Write / Remote Code Execution in the User.setLanguage method in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows remote attackers to write arbitrary files to the device's filesystem. This vulnerability can be exploited by unauthenticated attackers with access to the web interface.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Homematic Ccu2 FirmwareEq-3 | See advisory | 2.29.22 |
Patched Releases
Homematic Ccu2 Firmware
<=2.29.22
Timeline
Publicly disclosed
Feb 22, 2018
Last updated
Nov 21, 2024
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- advisoryatomic111.github.io · homematic-ccu2-filewrite
- advisory44361
- exploitExploitDB-44361
FAQ
Common Questions.
Directory Traversal / Arbitrary File Write / Remote Code Execution in the User.setLanguage method in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows remote attackers to write arbitrary files to the device's filesystem.
Affected: Homematic Ccu2 Firmware (Eq-3). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Homematic Ccu2 Firmware <=2.29.22, Homematic Ccu2 Firmware 2.29.22.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2018-7300 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo