Vulnerability description and reproduction #1
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shacharz
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Jun 8, 2021
readme.md
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| ### Exploitation | ||
| So, to exploit this we would need to create a STUN_BIND_REQUEST that will create a STUN_BIND_RESPONSE that has the 4in6 local ipv4 as XOR_MAPPED_ADDRESS. | ||
| First, we don't define any STUN server. When candidate pairing is done in that case, the STUN_BIND_REQUEST goes directly to the other peer. | ||
| Fortunately, the WEBRTC [network manager binds two UDP sockets](https://webrtc.googlesource.com/src/+/9f9bf38805e14688acef01fe6814b8ce3a98c09c/rtc_base/network.cc#284) - one on INADDR_ANY (0.0.0.0), and another on in6addr_any. These Sockets are used to create the local candidates, and also to do the MDNS protocol negotiation. |
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Are they also used to do the mDNS protocol negotiation ? I thought it's a different module. anyway not sure this explanation is relevant (what they are used for)
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