ID CVE-2015-7712 Type cve Reporter NVD Modified 2015-11-17T10:20:18
Description
Multiple eval injection vulnerabilities in mods/_standard/gradebook/edit_marks.php in ATutor 2.2 and earlier allow remote authenticated users with the AT_PRIV_GRADEBOOK privilege to execute arbitrary PHP code via the (1) asc or (2) desc parameter.
{"packetstorm": [{"lastseen": "2016-12-05T22:11:52", "references": [], "edition": 1, "description": "", "reporter": "EgiX", "published": "2015-11-04T00:00:00", "type": "packetstorm", "title": "ATutor 2.2 PHP Code Injection", "enchantments": {"score": {"vector": "NONE", "value": 7.5}}, "bulletinFamily": "exploit", "cvelist": ["CVE-2015-7712"], "modified": "2015-11-04T00:00:00", "href": "https://packetstormsecurity.com/files/134218/ATutor-2.2-PHP-Code-Injection.html", "id": "PACKETSTORM:134218", "sourceData": "`--------------------------------------------------------------- \nATutor <= 2.2 (edit_marks.php) PHP Code Injection Vulnerability \n--------------------------------------------------------------- \n \n \n[-] Software Link: \n \nhttp://www.atutor.ca/ \n \n \n[-] Affected Versions: \n \nVersion 2.2 and prior versions. \n \n \n[-] Vulnerability Description: \n \nThe vulnerable code is located in the /mods/_standard/gradebook/edit_marks.php script: \n \n54. if (isset($_GET['asc'])) \n55. { \n56. $order = 'asc'; \n57. $order_col = $addslashes($_GET['asc']); \n58. } \n59. else if (isset($_GET['desc'])) { \n60. $order = 'desc'; \n61. $order_col = $addslashes($_GET['desc']); \n \n[...] \n \n185. if ((isset($_GET[\"asc\"]) || isset($_GET[\"desc\"])) && $order_col <> \"name\") \n186. { \n187. $sort = '$grades['.$order_col.'], SORT_'.strtoupper($order).', $selected_students ... \n188. \n189. foreach($selected_tests as $test) \n190. { \n191. if ($test[\"gradebook_test_id\"] <> $order_col) \n192. $sort .= ', $grades['.$test[\"gradebook_test_id\"].'], SORT_'.strtoupper($order); \n193. } \n194. $sort='array_multisort('.$sort.');'; \n195. eval($sort); \n196. } \n \nUser input passed through the \"asc\" or \"desc\" GET parameters is not properly sanitized before being used in a \ncall to the \"eval()\" function at line 195. This can be exploited to inject and execute arbitrary PHP code. \nSuccessful exploitation of this vulnerability requires an account with the \"AT_PRIV_GRADEBOOK\" privilege. \n \n \n[-] Solution: \n \nNo official solution is currently available. \n \n \n[-] Disclosure Timeline: \n \n[06/10/2014] - Vendor notified \n[09/10/2014] - Vendor response stating this issue has been added to the bug tracker and it is relatively minor \n[13/10/2014] - Vendor replied saying he is not able to reproduce the issue and asked for further details \n[29/10/2014] - Further exploitation details have been provided to the vendor \n[11/11/2014] - Vendor replied saying he still is not able to reproduce the issue and asked for fix suggestions \n[11/11/2014] - Some fix suggestions have been provided to the vendor \n[30/09/2015] - CVE number requested \n[05/10/2015] - CVE number assigned \n[06/10/2015] - After one year still no official solution available \n[04/11/2015] - Public disclosure \n \n \n[-] CVE Reference: \n \nThe Common Vulnerabilities and Exposures project (cve.mitre.org) \nhas assigned the name CVE-2015-7712 to this vulnerability. \n \n \n[-] Credits: \n \nVulnerability discovered by Egidio Romano. \n \n \n[-] Original Advisory: \n \nhttp://karmainsecurity.com/KIS-2015-08 \n \n \n`\n", "cvss": {"score": 6.5, "vector": "AV:NETWORK/AC:LOW/Au:SINGLE_INSTANCE/C:PARTIAL/I:PARTIAL/A:PARTIAL/"}, "sourceHref": "https://packetstormsecurity.com/files/download/134218/KIS-2015-08.txt"}], "zdt": [{"lastseen": "2018-04-05T01:33:53", "references": [], "description": "ATutor versions 2.2 and below suffer from a remote php code injection vulnerability.", "edition": 2, "reporter": "EgiX", "published": "2015-11-05T00:00:00", "enchantments": {"score": {"vector": "NONE", "value": 7.5}}, "type": "zdt", "title": "ATutor 2.2 PHP Code Injection Vulnerability", "bulletinFamily": "exploit", "cvelist": ["CVE-2015-7712"], "modified": "2015-11-05T00:00:00", "id": "1337DAY-ID-24498", "href": "https://0day.today/exploit/description/24498", "sourceData": "---------------------------------------------------------------\r\nATutor <= 2.2 (edit_marks.php) PHP Code Injection Vulnerability\r\n---------------------------------------------------------------\r\n\r\n\r\n[-] Software Link:\r\n\r\nhttp://www.atutor.ca/\r\n\r\n\r\n[-] Affected Versions:\r\n\r\nVersion 2.2 and prior versions. \r\n\r\n\r\n[-] Vulnerability Description:\r\n\r\nThe vulnerable code is located in the /mods/_standard/gradebook/edit_marks.php script:\r\n\r\n54. if (isset($_GET['asc']))\r\n55. {\r\n56. $order = 'asc';\r\n57. $order_col = $addslashes($_GET['asc']);\r\n58. }\r\n59. else if (isset($_GET['desc'])) {\r\n60. $order = 'desc';\r\n61. $order_col = $addslashes($_GET['desc']);\r\n\r\n[...]\r\n\r\n185. if ((isset($_GET[\"asc\"]) || isset($_GET[\"desc\"])) && $order_col <> \"name\")\r\n186. {\r\n187. $sort = '$grades['.$order_col.'], SORT_'.strtoupper($order).', $selected_students ...\r\n188. \r\n189. foreach($selected_tests as $test)\r\n190. {\r\n191. if ($test[\"gradebook_test_id\"] <> $order_col)\r\n192. $sort .= ', $grades['.$test[\"gradebook_test_id\"].'], SORT_'.strtoupper($order);\r\n193. }\r\n194. $sort='array_multisort('.$sort.');';\r\n195. eval($sort);\r\n196. }\r\n\r\nUser input passed through the \"asc\" or \"desc\" GET parameters is not properly sanitized before being used in a\r\ncall to the \"eval()\" function at line 195. This can be exploited to inject and execute arbitrary PHP code.\r\nSuccessful exploitation of this vulnerability requires an account with the \"AT_PRIV_GRADEBOOK\" privilege.\r\n\r\n\r\n[-] Solution:\r\n\r\nNo official solution is currently available.\r\n\r\n\r\n[-] Disclosure Timeline:\r\n\r\n[06/10/2014] - Vendor notified\r\n[09/10/2014] - Vendor response stating this issue has been added to the bug tracker and it is relatively minor\r\n[13/10/2014] - Vendor replied saying he is not able to reproduce the issue and asked for further details\r\n[29/10/2014] - Further exploitation details have been provided to the vendor\r\n[11/11/2014] - Vendor replied saying he still is not able to reproduce the issue and asked for fix suggestions\r\n[11/11/2014] - Some fix suggestions have been provided to the vendor\r\n[30/09/2015] - CVE number requested\r\n[05/10/2015] - CVE number assigned\r\n[06/10/2015] - After one year still no official solution available\r\n[04/11/2015] - Public disclosure\r\n\r\n\r\n[-] CVE Reference:\r\n\r\nThe Common Vulnerabilities and Exposures project (cve.mitre.org)\r\nhas assigned the name CVE-2015-7712 to this vulnerability.\n\n# 0day.today [2018-04-05] #", "cvss": {"score": 6.5, "vector": "AV:NETWORK/AC:LOW/Au:SINGLE_INSTANCE/C:PARTIAL/I:PARTIAL/A:PARTIAL/"}, "sourceHref": "https://0day.today/exploit/24498"}]}
