A vulnerability, which was classified as critical, was found in DrayTek Vigor2960 and Vigor300B 1.5.1.4. Affected is an unknown function of the file /cgi-bin/mainfunction.cgi/apmcfgupload of the component Web Management Interface. The manipulation of the argument session leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.5.1.5 is able to address this issue. It is recommended to upgrade the affected component.
Certain Draytek products are vulnerable to Cross Site Scripting (XSS) via the wlogin.cgi script and userlogin.cgi script of the router's web application management portal. This affects Vigor3910, Vigor1000B, Vigor2962 v4.3.2.1; Vigor2865 and Vigor2866 v4.4.1.0; Vigor2927 v4.4.2.2; and Vigor2915, Vigor2765, Vigor2766, Vigor2135 v4.4.2.0; Vigor2763 v4.4.2.1; Vigor2862 and Vigor2926 v3.9.9.0; Vigor2925 v3.9.3; Vigor2952 and Vigor3220 v3.9.7.3; Vigor2133 and Vigor2762 v3.9.6.4; and Vigor2832 v3.9.6.2.
The CGI endpoints v2x00.cgi and cgiwcg.cgi of DrayTek Vigor3910 devices through 4.3.2.6 are vulnerable to buffer overflows, by authenticated users, because of missing bounds checking on parameters passed through POST requests to the strncpy function.
Several CGI endpoints are vulnerable to buffer overflows, by authenticated users, because of missing bounds checking on parameters passed through POST requests to the strcpy function on DrayTek Vigor310 devices through 4.3.2.6.
Buffer Overflow vulnerabilities exist in DrayTek Vigor310 devices through 4.3.2.6 (in the Vigor management UI) because of improper retrieval and handling of the CGI form parameters.
DrayTek Vigor 3900 before v1.5.1.5Beta, DrayTek Vigor 2960 before v1.5.1.5Beta and DrayTek Vigor 300B before v1.5.1.5Beta were discovered to contain a command injection vulnerability via the action parameter at cgi-bin/mainfunction.cgi.
DrayTek Vigor3910 devices through 4.3.2.6 have a stack-based overflow when processing query string parameters because GetCGI mishandles extraneous ampersand characters and long key-value pairs.
A Directory Traversal issue was discovered in processpost on Draytek Vigor3910 4.3.2.5 devices. When sending a certain POST request, it calls the function and exports information.
A stack-based buffer overflow in cvmd on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request.
A stack-based buffer overflow in apmd on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request.
/cgi-bin/activate.cgi on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve command injection via a remote HTTP request in DEBUG mode.
A stack-based buffer overflow in /cgi-bin/activate.cgi while base64 decoding ticket parameter on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request (issue 3 of 3).
A stack-based buffer overflow in /cgi-bin/activate.cgi through var parameter on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request (issue 1 of 3).
A stack-based buffer overflow in /cgi-bin/activate.cgi through ticket parameter on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request (issue 2 of 3).
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the sAct parameter at v2x00.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
In Draytek Vigor3900 1.5.1.3, attackers can inject malicious commands into mainfunction.cgi and execute arbitrary commands by calling the doGRETunnel function.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the ipaddrmsk%d parameter at v2x00.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the queryret parameter at v2x00.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the saveVPNProfile parameter at v2x00.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the sPubKey parameter at dialin.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the sDnsPro parameter at v2x00.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
An issue in DrayTek Vigor310 devices through 4.3.2.6 allows an attacker to obtain sensitive information because the httpd server of the Vigor management UI uses a static string for seeding the PRNG of OpenSSL.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the sIpv6AiccuUser parameter at inetipv6.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the sProfileName parameter at fextobj.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the newProname parameter at v2x00.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the sAppName parameter at sslapp.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the ssidencrypt5g%d parameter at v2x00.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the sProfName parameter at v2x00.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the sBPAUsrNme parameter at inet15.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Stored XSS, by authenticated users, is caused by poor sanitization of the Login Page Greeting message in DrayTek Vigor310 devices through 4.3.2.6.