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Land #199, Adjust proxy code to support DNS/DHCP resolution

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This commit is contained in:
Brent Cook 2017-05-08 16:57:08 -05:00
commit dc712150af
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GPG Key ID: 1FFAA0B24B708F96
1 changed files with 16 additions and 7 deletions
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23
c/meterpreter/source/server/win/server_transport_winhttp.c
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@ -51,18 +51,27 @@ static HINTERNET get_request_winhttp(HttpTransportContext *ctx, BOOL isGet, cons
dprintf("[PROXY] Proxy: %S", ieConfig.lpszProxy);
dprintf("[PROXY] Proxy Bypass: %S", ieConfig.lpszProxyBypass);
if (ieConfig.lpszAutoConfigUrl)
if (ieConfig.lpszAutoConfigUrl || ieConfig.fAutoDetect)
{
WINHTTP_AUTOPROXY_OPTIONS autoProxyOpts = { 0 };
WINHTTP_PROXY_INFO proxyInfo = { 0 };
dprintf("[PROXY] IE config set to autodetect with URL %S", ieConfig.lpszAutoConfigUrl);
autoProxyOpts.dwFlags = WINHTTP_AUTOPROXY_AUTO_DETECT | WINHTTP_AUTOPROXY_CONFIG_URL;
autoProxyOpts.dwAutoDetectFlags = WINHTTP_AUTO_DETECT_TYPE_DHCP | WINHTTP_AUTO_DETECT_TYPE_DNS_A;
if (ieConfig.fAutoDetect)
{
dprintf("[PROXY] IE config set to autodetect with DNS or DHCP");
autoProxyOpts.dwFlags = WINHTTP_AUTOPROXY_AUTO_DETECT;
autoProxyOpts.dwAutoDetectFlags = WINHTTP_AUTO_DETECT_TYPE_DHCP | WINHTTP_AUTO_DETECT_TYPE_DNS_A;
}
else
{
dprintf("[PROXY] IE config set to autodetect with URL %S", ieConfig.lpszAutoConfigUrl);
autoProxyOpts.dwFlags = WINHTTP_AUTOPROXY_CONFIG_URL;
autoProxyOpts.lpszAutoConfigUrl = ieConfig.lpszAutoConfigUrl;
}
autoProxyOpts.fAutoLogonIfChallenged = TRUE;
autoProxyOpts.lpszAutoConfigUrl = ieConfig.lpszAutoConfigUrl;
if (WinHttpGetProxyForUrl(ctx->internet, ctx->url, &autoProxyOpts, &proxyInfo))
{
ctx->proxy_for_url = malloc(sizeof(WINHTTP_PROXY_INFO));