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exploit-db-mirror/exploits/multiple/dos/45122.txt
Offensive Security ed0e1e4d44 DB: 2018-09-25 
1979 changes to exploits/shellcodes

Couchdb 1.5.0 - 'uuids' Denial of Service
Apache CouchDB 1.5.0 - 'uuids' Denial of Service

Beyond Remote 2.2.5.3 - Denial of Service (PoC)
udisks2 2.8.0 - Denial of Service (PoC)
Termite 3.4 - Denial of Service (PoC)
SoftX FTP Client 3.3 - Denial of Service (PoC)

Silverstripe 2.3.5 - Cross-Site Request Forgery / Open redirection
SilverStripe CMS 2.3.5 - Cross-Site Request Forgery / Open Redirection

Silverstripe CMS 3.0.2 - Multiple Vulnerabilities
SilverStripe CMS 3.0.2 - Multiple Vulnerabilities

Silverstripe CMS 2.4 - File Renaming Security Bypass
SilverStripe CMS 2.4 - File Renaming Security Bypass

Silverstripe CMS 2.4.5 - Multiple Cross-Site Scripting Vulnerabilities
SilverStripe CMS 2.4.5 - Multiple Cross-Site Scripting Vulnerabilities

Silverstripe CMS 2.4.7 - 'install.php' PHP Code Injection
SilverStripe CMS 2.4.7 - 'install.php' PHP Code Injection

Silverstripe Pixlr Image Editor - 'upload.php' Arbitrary File Upload
SilverStripe CMS Pixlr Image Editor - 'upload.php' Arbitrary File Upload

Silverstripe CMS 2.4.x - 'BackURL' Open Redirection
SilverStripe CMS 2.4.x - 'BackURL' Open Redirection

Silverstripe CMS - 'MemberLoginForm.php' Information Disclosure
SilverStripe CMS - 'MemberLoginForm.php' Information Disclosure

Silverstripe CMS - Multiple HTML Injection Vulnerabilities
SilverStripe CMS - Multiple HTML Injection Vulnerabilities

Apache CouchDB 1.7.0 and 2.x before 2.1.1 - Remote Privilege Escalation
Apache CouchDB 1.7.0 / 2.x < 2.1.1 - Remote Privilege Escalation

Monstra CMS before 3.0.4 - Cross-Site Scripting
Monstra CMS < 3.0.4 - Cross-Site Scripting (2)

Monstra CMS < 3.0.4 - Cross-Site Scripting
Monstra CMS < 3.0.4 - Cross-Site Scripting (1)
Navigate CMS 2.8 - Cross-Site Scripting
Collectric CMU 1.0 - 'lang' SQL injection
Joomla! Component CW Article Attachments 1.0.6 - 'id' SQL Injection
LG SuperSign EZ CMS 2.5 - Remote Code Execution
MyBB Visual Editor 1.8.18 - Cross-Site Scripting
Joomla! Component AMGallery 1.2.3 - 'filter_category_id' SQL Injection
Joomla! Component Micro Deal Factory 2.4.0 - 'id' SQL Injection
RICOH Aficio MP 301 Printer - Cross-Site Scripting
Joomla! Component Auction Factory 4.5.5 - 'filter_order' SQL Injection
RICOH MP C6003 Printer - Cross-Site Scripting

Linux/ARM - Egghunter (PWN!) + execve(_/bin/sh__ NULL_ NULL) Shellcode (28 Bytes)
Linux/ARM - sigaction() Based Egghunter (PWN!) + execve(_/bin/sh__ NULL_ NULL) Shellcode (52 Bytes)
2018-09-25 05:01:51 +00:00

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There are several calls to memcpy that can overflow the destination buffer in webrtc::UlpfecReceiverImpl::AddReceivedRedPacket. The method takes a parameter incoming_rtp_packet, which is an RTP packet with a mac length that is defined by the transport (2048 bytes for DTLS in Chrome). This packet is then copied to the received_packet in several locations in the method, depending on packet properties, using the lenth of the incoming_rtp_packet as the copy length. The received_packet is a ForwardErrorCorrection::ReceivedPacket, which has a max size of 1500. Therefore, the memcpy calls in this method can overflow this buffer.
==204614==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61b000046670 at pc 0x00000059d958 bp 0x7ffcac5716f0 sp 0x7ffcac570ea0
WRITE of size 2316 at 0x61b000046670 thread T0
#0 0x59d957 in __asan_memcpy /b/build/slave/linux_upload_clang/build/src/third_party/llvm/compiler-rt/lib/asan/asan_interceptors_memintrinsics.cc:23:3
#1 0x1b6aacc in webrtc::UlpfecReceiverImpl::AddReceivedRedPacket(webrtc::RTPHeader const&, unsigned char const*, unsigned long, unsigned char) modules/rtp_rtcp/source/ulpfec_receiver_impl.cc:173:5
#2 0x1b3cd5c in webrtc::RtpVideoStreamReceiver::ParseAndHandleEncapsulatingHeader(unsigned char const*, unsigned long, webrtc::RTPHeader const&) video/rtp_video_stream_receiver.cc:426:27
#3 0x1b39a31 in webrtc::RtpVideoStreamReceiver::ReceivePacket(unsigned char const*, unsigned long, webrtc::RTPHeader const&) video/rtp_video_stream_receiver.cc:402:5
#4 0x1b3a895 in webrtc::RtpVideoStreamReceiver::OnRtpPacket(webrtc::RtpPacketReceived const&) video/rtp_video_stream_receiver.cc:301:3
#5 0x8c7a26 in webrtc::RtpDemuxer::OnRtpPacket(webrtc::RtpPacketReceived const&) call/rtp_demuxer.cc:157:11
#6 0x8cec3d in webrtc::RtpStreamReceiverController::OnRtpPacket(webrtc::RtpPacketReceived const&) call/rtp_stream_receiver_controller.cc:55:19
#7 0x12e8507 in webrtc::internal::Call::DeliverRtp(webrtc::MediaType, rtc::CopyOnWriteBuffer, webrtc::PacketTime const&) call/call.cc:1291:36
#8 0x12e92a0 in webrtc::internal::Call::DeliverPacket(webrtc::MediaType, rtc::CopyOnWriteBuffer, webrtc::PacketTime const&) call/call.cc:1316:10
#9 0x5da2a6 in webrtc::RtpReplay() video/replay.cc:635:31
#10 0x5dd5fe in main video/replay.cc:700:3
#11 0x7feaa1ee92b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)
0x61b000046670 is located 0 bytes to the right of 1520-byte region [0x61b000046080,0x61b000046670)
allocated by thread T0 here:
#0 0x5c9362 in operator new(unsigned long) /b/build/slave/linux_upload_clang/build/src/third_party/llvm/compiler-rt/lib/asan/asan_new_delete.cc:93:3
#1 0x1b6a8c8 in webrtc::UlpfecReceiverImpl::AddReceivedRedPacket(webrtc::RTPHeader const&, unsigned char const*, unsigned long, unsigned char) modules/rtp_rtcp/source/ulpfec_receiver_impl.cc:165:35
#2 0x1b3cd5c in webrtc::RtpVideoStreamReceiver::ParseAndHandleEncapsulatingHeader(unsigned char const*, unsigned long, webrtc::RTPHeader const&) video/rtp_video_stream_receiver.cc:426:27
#3 0x1b39a31 in webrtc::RtpVideoStreamReceiver::ReceivePacket(unsigned char const*, unsigned long, webrtc::RTPHeader const&) video/rtp_video_stream_receiver.cc:402:5
#4 0x1b3a895 in webrtc::RtpVideoStreamReceiver::OnRtpPacket(webrtc::RtpPacketReceived const&) video/rtp_video_stream_receiver.cc:301:3
#5 0x8c7a26 in webrtc::RtpDemuxer::OnRtpPacket(webrtc::RtpPacketReceived const&) call/rtp_demuxer.cc:157:11
#6 0x8cec3d in webrtc::RtpStreamReceiverController::OnRtpPacket(webrtc::RtpPacketReceived const&) call/rtp_stream_receiver_controller.cc:55:19
#7 0x12e8507 in webrtc::internal::Call::DeliverRtp(webrtc::MediaType, rtc::CopyOnWriteBuffer, webrtc::PacketTime const&) call/call.cc:1291:36
#8 0x12e92a0 in webrtc::internal::Call::DeliverPacket(webrtc::MediaType, rtc::CopyOnWriteBuffer, webrtc::PacketTime const&) call/call.cc:1316:10
#9 0x5da2a6 in webrtc::RtpReplay() video/replay.cc:635:31
#10 0x5dd5fe in main video/replay.cc:700:3
#11 0x7feaa1ee92b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)
SUMMARY: AddressSanitizer: heap-buffer-overflow /b/build/slave/linux_upload_clang/build/src/third_party/llvm/compiler-rt/lib/asan/asan_interceptors_memintrinsics.cc:23:3 in __asan_memcpy
Shadow bytes around the buggy address:
0x0c3680000c70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c3680000c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c3680000c90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c3680000ca0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c3680000cb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c3680000cc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00[fa]fa
0x0c3680000cd0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c3680000ce0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c3680000cf0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c3680000d00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c3680000d10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
To reproduce this issue:
1) replace video/replay.cc with the attached version, and build it with asan (ninja -C out/asan video_replay). Note that this file adds the ability to load a full receiver config to the video replay tool, I'm hoping to eventually get this change committed to WebRTC.
2) Download the attached files config4.txt and fallbackoob1
3) run video_replay --input_file fallbackoob1 --config_file config4.txt
Proof of Concept:
https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/45122.zip
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