Showing posts from July, 2015

Protect Google Chrome against Logjam Vulnerability

Determine if you're vulnerable to the Logjam Attack - go to  with your chrome browser and see if you get a blue bar (good) or a red one (bad). When I tried this Firefox was OK, Google Chrome was not. I fixed this by editing /usr/bin/google-chrome and adding the --cipher-suite-blacklist parameter. # Make sure that the profile directory specified in the environment, if any, # overrides the default. if [[ -n "$CHROME_USER_DATA_DIR" ]]; then   # Note: exec -a below is a bashism.   exec -a "$0" "$HERE/chrome"  --user-data-dir="$CHROME_USER_DATA_DIR"  --cipher-suite-blacklist=0xcc15,0x009e,0x0039,0x0033 "$@" else   exec -a "$0" "$HERE/chrome" --cipher-suite-blacklist=0xcc15,0x009e,0x0039,0x0033 "$@" fi as shown above.  will tell you which ciphers your browser currently supports.