Prevent byte-by-byte and attachment inference side channel attacks #10266
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
phoerious
force-pushed
the
fix/security-enhancer
branch
from
8b96d57 to
bd7d64a
Compare
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## develop #10266 +/- ##
===========================================
+ Coverage 63.64% 63.75% +0.11%
===========================================
Files 362 362
Lines 43954 43997 +43
===========================================
+ Hits 27972 28047 +75
+ Misses 15982 15950 -32 ☔ View full report in Codecov by Sentry. |
phoerious
force-pushed
the
fix/security-enhancer
branch
from
bd7d64a to
e59f4ae
Compare
droidmonkey
force-pushed
the
fix/security-enhancer
branch
from
e59f4ae to
c5221df
Compare
droidmonkey
changed the title
|
@phoerious I think this is ready to merge |
droidmonkey
force-pushed
the
fix/security-enhancer
branch
from
c5221df to
14ec652
Compare
phoerious
approved these changes
Feb 7, 2024
droidmonkey
force-pushed
the
fix/security-enhancer
branch
from
14ec652 to
9b65ed8
Compare
Attack - KeeShare attachments can be inferred because of attachment de-duplication. Solution - Prevent de-duplication of normal database entry attachments with those entry attachments synchronized/associated with a KeeShare database. This is done using the KeeShare database UUID injected into the hash calculation of the attachment prior to de-dupe. The attachments themselves are not modified in any way. -------- Attack - Side channel byte-by-byte inference due to compression de-duplication of data between a KeeShare database and it's parent. Solution - Generate a random array between 64 and 512 bytes, convert to hex, and store in the database custom data. -------- Attack vector assumptions: 1. Compression is enabled 2. The attacker has access to a KeeShare database actively syncing with the victim's database 3. The victim's database is unlocked and syncing 4. The attacker can see the exact size of the victim's database after saving, and syncing, the KeeShare database Thank you to Andrés Fábrega from Cornell University for theorizing and informing us of this attack vector.
droidmonkey
force-pushed
the
fix/security-enhancer
branch
from
9b65ed8 to
dccf0e0
Compare
libf-de
pushed a commit
to libf-de/keepassxc-secretservice-dbus
that referenced
this pull request
Mar 11, 2024
Release 2.7.7 - Support USB Hotplug for Hardware Key interface [keepassxreboot#10092] - Support 1PUX and Bitwarden import [keepassxreboot#9815] - Browser: Add support for PassKeys [keepassxreboot#8825, keepassxreboot#9987, keepassxreboot#10318] - Build System: Move to vcpkg manifest mode [keepassxreboot#10088] - Fix multiple TOTP issues [keepassxreboot#9874] - Fix focus loss on save when the editor is not visible anymore [keepassxreboot#10075] - Fix visual when removing entry from history [keepassxreboot#9947] - Fix first entry is not selected when a search is performed [keepassxreboot#9868] - Prevent scrollbars on entry drag/drop [keepassxreboot#9747] - Prevent duplicate characters in "Also choose from" field of password generator [keepassxreboot#9803] - Security: Prevent byte-by-byte and attachment inference side channel attacks [keepassxreboot#10266] - Browser: Fix raising Update Entry messagebox [keepassxreboot#9853] - Browser: Fix bugs when returning credentials [keepassxreboot#9136] - Browser: Fix crash on database open from browser [keepassxreboot#9939] - Browser: Fix support for referenced URL fields [keepassxreboot#8788] - MacOS: Fix crash when changing highlight/accent color [keepassxreboot#10348] - MacOS: Fix TouchID appearing even though lid is closed [keepassxreboot#10092] - Windows: Fix terminating KeePassXC processes with MSI installer [keepassxreboot#9822] - FdoSecrets: Fix database merge crash when enabled [keepassxreboot#10136] # -----BEGIN PGP SIGNATURE----- # # iQEzBAABCAAdFiEENIkEDB8MPuq41ValRA/GXy4MbgEFAmXs7VsACgkQRA/GXy4M # bgHLpwf/brnyPPs3gJxZmD2pn8542D4CCsDh0fTceurOtqCe3J4Y+Fftc5euuoQu # 6rP4vJdd586l7JX5FnYIPXvGiU9op3MudJh+y+RN/PWwKcXNIXfUItMhpZEka49n # xnw+Wvbilg1QIHSSmZdIjBpohnEkA67qhWauc3bCacrRyEvIOzVMTxnqDTe4GUDy # CyauaRMMKezRTpLxSsk63TDAZZgDwK4ci5lC6ysHekc1Za6IbI3fMFjz1BGj+kPU # tMHMfDCWqK/5JZ27ZWcxy7m8tJY9m3rb+MoCyFRQz9ixaEe29yf5NqYdm9sn1Dlh # O7aFi7/EJtsBlXdguw5BcTPbsL7XEQ== # =Cots # -----END PGP SIGNATURE----- # gpg: directory '/home/runner/.gnupg' created # gpg: keybox '/home/runner/.gnupg/pubring.kbx' created # gpg: Signature made Sat Mar 9 23:14:35 2024 UTC # gpg: using RSA key 3489040C1F0C3EEAB8D556A5440FC65F2E0C6E01 # gpg: Can't check signature: No public key
|
could you clarify which releases are affected? |
|
Anything less than 2.7.7 |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Attack - KeeShare attachments can be inferred because of attachment de-duplication.
Solution - Prevent de-duplication of normal database entry attachments with those entry attachments synchronized/associated with a KeeShare database. This is done using the KeeShare database UUID injected into the hash calculation of the attachment prior to de-dupe. The attachments themselves are not modified in any way.
Attack - Side channel byte-by-byte inference due to compression de-duplication of data between a KeeShare database and it's parent.
Solution - Generate a random array between 64 and 512 bytes, convert to hex, and store in the database custom data.
Attack vector assumptions:
Thank you to Andrés Fábrega from Cornell University for theorizing and informing us of this attack vector.
Type of change