CVE-2022-29298: SolarView Compact ver.6.00 allows attackers to access sensitive files via directory traversal.

PriorityP268high7.5CVSS 3.1

AVNACLPRNUINSUCHINAN

EXPLOIT

EPSS

44.54%

98.6th percentile

SolarView Compact ver.6.00 allows attackers to access sensitive files via directory traversal.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
contec	sv-cpt-mc310_firmware	—	—

Detection & IOCsextracted from sources · hover to see the quote

url/downloader.php?file=../../../../../../../../../../../../../etc/passwd%00.jpg↗

path/downloader.php↗

sigma↗

GET request to /downloader.php with file parameter containing '../' and '%00'

→The vulnerable endpoint is 'downloader.php'. Monitor HTTP GET requests to this path containing directory traversal sequences ('../') combined with a null-byte injection ('%00') and a fake image extension ('.jpg') to bypass file-type filters. ↗
→No authentication is required to exploit this vulnerability. Any unauthenticated GET request to /downloader.php with a traversal payload should be treated as an active exploitation attempt. ↗
→Successful exploitation returns HTTP 200 with the body matching 'root:.*:0:0:', indicating /etc/passwd content was disclosed. Alert on responses from /downloader.php containing this pattern. ↗
→Use Shodan/FOFA queries to identify exposed SolarView Compact instances: Shodan 'http.html:"SolarView Compact"' and FOFA 'body="solarview compact"'. ↗

·The exploit targets specifically SolarView Compact version 6.00 (firmware cpe:2.3:o:contec:sv-cpt-mc310_firmware:6.00). Detections should be scoped to this version; other versions may not be vulnerable. ↗
·The null-byte injection ('%00') is used to truncate the appended '.jpg' extension server-side, allowing arbitrary file reads. Detection rules must account for URL-encoded null bytes in the 'file' parameter. ↗
·The EPSS score is 0.82294 (99.2nd percentile), indicating this vulnerability is very likely being actively exploited in the wild. Prioritize detection and patching accordingly. ↗

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

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