CVE-2008-7209

published 2009-09-11

CVE-2008-7209: Unrestricted file upload vulnerability in the add2 action in a_upload.php in OneCMS 2.4, and possibly earlier, allows remote attackers to execute arbitrary…

Priority P3 55 high 7.5 CVSS 2.0

AV N AC L Au N C P I P A P

EXPLOIT

Unrestricted file upload vulnerability in the add2 action in a_upload.php in OneCMS 2.4, and possibly earlier, allows remote attackers to execute arbitrary code by uploading a file with an executable extension and using a safe content type such as image/gif, then accessing it via a direct request to the file in an unspecified directory.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
insane_visions	onecms	<= 2.4	—

Detection & IOCs extracted from sources · hover to see the quote

url /OneCMS_v2.4/a_upload.php?view=add2↗

url /OneCMS_v2.4/staff.php?user=aaa' union select 1,username,password,1,1,1,1,1,1,1,1,1,1 from onecms_users/*↗

path a_upload.php↗

path a_login.php↗

path staff.php↗

• → Detect arbitrary file upload bypass: attacker uploads a file with an executable extension (e.g., .php) while spoofing the Content-Type as image/gif, image/jpeg, image/bmp, or image/png to pass the server-side type check in a_upload.php. ↗
• → Detect SQL injection authentication bypass in login: monitor POST requests to a_login.php where the username field contains SQL metacharacters such as single quotes and comment sequences (e.g., admin' or 1=1 /*). ↗
• → Detect SQL injection in staff.php via the 'user' GET parameter: look for UNION SELECT payloads targeting onecms_users table, especially when magic_quotes_gpc is Off. ↗
• → Detect exploitation cookie pattern: requests to a_upload.php with a cookie containing SQL injection payload in the username field (e.g., username=admin'or 1=1/*) combined with a multipart file upload of a .php file. ↗
• → The vulnerable upload copies the file directly to the server path using the attacker-controlled filename without sanitization: monitor for newly created .php (or other executable) files in the upload directory following a POST to a_upload.php?view=add2. ↗

• · The SQL injection in staff.php (user parameter) only works when magic_quotes_gpc is Off on the server; environments with magic_quotes_gpc enabled are not vulnerable to that specific vector. ↗
• · The file upload vulnerability relies solely on the client-supplied Content-Type header for validation; the server does not verify actual file content, meaning any executable file disguised with an image MIME type will be accepted. ↗

CVEs like this are exactly what “Exploited This Week” covers.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-264