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Monkey HTTP Daemon: broken user name authentication

A NULL pointer dereference in the mk_http_range_parse function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

Buffer overflow in PostMethod() function for Monkey HTTP Daemon (monkeyd) 0.6.1 and earlier allows remote attackers to execute arbitrary code via a POST request with a large body.

The web server Monkeyd produces a world-readable log (/var/log/monkeyd/master.log) on gentoo.

Format string vulnerability in cgi.c for Monkey daemon (monkeyd) before 0.9.1 allows remote attackers to cause a denial of service and possibly execute arbitrary code via an HTTP GET request containing double-encoded format string specifiers (aka "double expansion error").

A stack overflow in the mk_http_index_lookup function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

An out-of-bounds read in the mk_mimetype_find function (mk_server/mk_mimetype.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

An out-of-bounds read in the header_cmp function (mk_server/mk_http_parser.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

An out-of-bounds read in the mk_vhost_fdt_close function (mk_server/mk_vhost.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

A use-after-free in the mk_http_request_end function (mk_server/mk_http.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

An out-of-bounds read in the mk_ptr_to_buf in mk_core function (mk_memory.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

A use-after-free in the mk_string_char_search function (mk_core/mk_string.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request to the server.

An out-of-bounds read in the http_parser_transfer_encoding_chunked function (mk_server/mk_http_parser.c) of monkey commit f37e984 allows attackers to cause a Denial of Service (DoS) via sending a crafted POST request to the server.

Monkey HTTP Daemon has local security bypass

Monkey HTTP Daemon 0.9.3 uses a real UID of root and a real GID of root during execution of CGI scripts, which might allow local users to gain privileges by leveraging cgi-bin write access.

Monkey HTTP Daemon 0.9.3 might allow local users to overwrite arbitrary files via a symlink attack on a PID file, as demonstrated by a pathname different from the default /var/run/monkey.pid pathname.

Stack-based buffer overflow in the mk_request_header_process function in mk_request.c in Monkey HTTP Daemon (monkeyd) before 1.2.1 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted HTTP header.

The Mandril security plugin in Monkey HTTP Daemon (monkeyd) before 1.5.0 allows remote attackers to bypass access restrictions via a crafted URI, as demonstrated by an encoded forward slash.

The mk_request_header_process function in mk_request.c in Monkey 1.1.1 allows remote attackers to cause a denial of service (thread crash and service outage) via a '\0' character in an HTTP request.

Directory traversal vulnerability in Monkey HTTP Daemon 0.1.4 allows remote attackers to read arbitrary files via .. (dot dot) sequences.

The Post_Method function in method.c for Monkey HTTP Daemon before 0.5.1 allows remote attackers to cause a denial of service (crash) via a POST request with an invalid or missing Content-Length header value.

The get_real_string function in Monkey HTTP Daemon (monkeyd) 0.8.1 and earlier allows remote attackers to cause a denial of service (crash) via an HTTP request with a sequence of "%" characters and a missing Host field.

Monkey HTTP Daemon (monkeyd) before 1.2.2 allows remote attackers to cause a denial of service (infinite loop) via an offset equal to the file size in the Range HTTP header.

The Post_Method function in Monkey HTTP Daemon before 0.6.2 allows remote attackers to cause a denial of service (crash) via a POST request without a Content-Type header.

Monkey daemon (monkeyd) before 0.9.1 allows remote attackers to cause a denial of service (memory corruption) via a request for a zero byte file.

Monkey HTTP Daemon 0.9.3 retains the supplementary group IDs of the root account during operations with a non-root effective UID, which might allow local users to bypass intended file-read restrictions by leveraging a race condition in a file-permission check.

Cross-site scripting (XSS) vulnerability in Monkey 0.5.0 allows remote attackers to inject arbitrary web script or HTML via (1) the URL or (2) a parameter to test2.pl.

Cross-site scripting (XSS) vulnerability in the Directory Listing plugin in Monkey HTTP Daemon (monkeyd) 1.2.2 allows attackers to inject arbitrary web script or HTML via a file name.

Monkey HTTP Server before 1.5.3, when the File Descriptor Table (FDT) is enabled and custom error messages are set, allows remote attackers to cause a denial of service (file descriptor consumption) via an HTTP request that triggers an error message.