[tor-commits] [tor-browser-spec/master] Bug 40013: Add FF86 audit

[gk@xxxxxxxxxxxxxx]

commit 5422d6088430108cbc5f407e83d8e792899f7cdd
Author: Matthew Finkel <sysrqb@xxxxxxxxxxxxxx>
Date:   Tue Feb 9 22:56:18 2021 +0000

    Bug 40013: Add FF86 audit
---
 audits/FF86_NETWORK_AUDIT | 140 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)

diff --git a/audits/FF86_NETWORK_AUDIT b/audits/FF86_NETWORK_AUDIT
new file mode 100644
index 0000000..74d76b0
--- /dev/null
+++ b/audits/FF86_NETWORK_AUDIT
@@ -0,0 +1,140 @@
+`git diff 5a2e34d5821fa203454eb9a8b12d7749a7c50d00 cb5d7889e9b8fb61fe5fe6c87f6b58e261be0ddb`
+and then go over all the changes containing the
+below mentioned potentially dangerous calls and features. Grep the diff for
+the following strings and examine surrounding usage.
+
+=============== Native DNS Portion =============
+
+PR_GetHostByName
+PR_GetIPNodeByName
+PR_GetAddrInfoByName
+PR_StringToNetAddr (itself is good as it passes AI_NUMERICHOST to getaddrinfo. No resolution.)
+
+MDNS
+TRR (DNS Trusted Recursive Resolver)
+Direct Paths to DNS resolution:
+nsDNSService::Resolve
+nsDNSService::AsyncResolve
+nsHostResolver::ResolveHost
+
+# FF86:
+# Bug 1652723 :
+#  - Prefetch https rr in HTMLDNSPrefetch
+#  - Review Result: Safe
+
+============ Misc Socket Portion ==============
+
+SOCK_
+SOCKET_
+_SOCKET
+
+# FF86:
+# - Bug 1685900
+#   - Split internal and external contentPolicyType
+#   - Review Result: Safe
+
+UDPSocket
+TCPSocket
+  PR_NewTCPSocket
+  AsyncTCPSocket
+
+Misc PR_Socket
+
+# FF86: Nothing of interest
+
+=========== Misc XPCOM Portion ================
+
+Misc XPCOM (including commands for pre-diff review approach)
+ *SocketProvider
+ grep -R udp-socket .
+ grep -R tcp-socket .
+ grep for tcpsocket
+ grep -R "NS_" | grep SOCKET | grep "_C"
+ grep -R "@mozilla.org/network/" . | grep socket | grep -v udp-socket
+
+# FF86:
+# Bug 1684982:
+#  - Add a scope to XRE_mainRun
+#  - Review Result: Safe
+
+# Bug 1681307
+#  - clean up view-source utils now that .webShell property on the progress listener no longer exists
+#  - Review Result: Safe
+
+============ Rust Portion ================
+
+Rust
+ - XXX: What do we grep for here? Or do we rely on Ritter's compile-time tool?
+ - Check for new sendmsg and recvmsg usage
+
+# FF86: Nothing of interest (mostly new neqo tests)
+
+============ Android Portion =============
+
+Android Java calls
+ - URLConnection
+   - XXX: getInputStream? other methods?
+ - HttpURLConnection
+ - UrlConnectionDownloader
+ - ch.boye.httpclientandroidlib.impl.client.* (look for execute() calls)
+ - grep -n openConnection\( mobile/android/thirdparty/
+ - java.net.URL -- has SEVERAL proxy bypass URL fetching methods :/
+ - java.net
+ - javax.net
+ - ch.boye.httpclientandroidlib.conn.* (esp ssl)
+ - ch.boye.httpclientandroidlib.impl.conn.* (esp ssl)
+ - Sudden appearance of thirdparty libs:
+   - OkHttp
+   - Retrofit
+   - Glide
+   - com.amitshekhar.android
+ - IntentHelper
+   - openUriExternal (can come from GeckoAppShell too)
+   - getHandlersForMimeType
+   - getHandlersForURL
+   - getHandlersForIntent
+ - android.content.Intent - too common; instead find launch methods:
+   - startActivity
+   - startActivities
+   - sendBroadcast
+   - sendOrderedBroadcast
+   - startService
+   - bindService
+ - android.app.PendingIntent
+ - android.app.DownloadManager
+ - ActivityHandlerHelper.startIntentAndCatch
+
+# FF86: Nothing new (using `java_audit.sh`)
+
+============ Application Services Portion =============
+
+Start: 4cc798c8cd8a1e38ce88e0bb22a05692be63b164 # v67.2.0
+End:   4cc798c8cd8a1e38ce88e0bb22a05692be63b164 # v67.2.0
+
+# FF86: Same tag as FF85
+
+============ Android Components Portion =============
+
+Start: 21ce9abdda0bc4001a72835fbbe7d71026ac0e66 # v70.0.16
+End:   4f36d0f93dab50e946a0dede0732c901c9942851 # v72.0.5
+
+# FF86 (using `java_audit.sh`)
+# Issue 8598:
+#  - Adds ActivityDelegate to support the GeckoView delegate
+#  - Review Result: Conditionally Safe
+#  - Comment: Uses PendingIntent, safety depends on usage. Current
+#             usage by new WebAuthn support in Fenix is safe.
+
+============ Fenix Portion =============
+
+Start: 24995d51a12d8e0bb10166f9f286c68d23b84a6a # v85.1.0
+End:   159c13ba04cdd8e4cd888b637d65e11e95241696 # v86.0.0-beta.2
+
+# FF86: Nothing new (using `java_audit.sh`)
+
+============ Regression/Prior Vuln Review =========
+
+Review proxy bypass bugs; check for new vectors to look for:
+ - https://trac.torproject.org/projects/tor/query?keywords=~tbb-proxy
+   - Look for new features like these. Especially external app launch vectors
+

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