-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 KL-001-2017-012 : Barracuda WAF Grub Password Complexity Title: Barracuda WAF Grub Password Complexity Advisory ID: KL-001-2017-012 Publication Date: 2017.07.06 Publication URL: https://www.korelogic.com/Resources/Advisories/KL-001-2017-012.txt 1. Vulnerability Details Affected Vendor: Barracuda Affected Product: Web Application Firewall V360 Affected Version: Firmware v8.0.1.014 Platform: Embedded Linux CWE Classification: CWE-259: Use of Hard-coded Password Impact: Privileged Access Attack vector: Password Cracking 2. Vulnerability Description The grub password for all V360 virtual appliances is four characters in length and, as a result, may be trivially easy to crack. 3. Technical Description # grep "pbkdf2" grub.cfg password_pbkdf2 root grub.pbkdf2.sha512.10000.CA568B32B7E1F9A8ADC73224CD8AD1085B23FF5B69558D92E70961F4DEE3F5844CC4E3FC8FC4CBDB0941AC682B52DE64343F6847DF8AD480597B49EA65F48B41.0314A76ADA4989857110B3177617AECF8D38F99E417DCE2B1A289AD5F48C0DFC4969E76E10175399E8978DDE5DFD4B6E7EE808CD00CD6CA43512E92C2EB1D63A # This hash cracks to: bimg 4. Mitigation and Remediation Recommendation The vendor has patched this vulnerability in the lastest virtual appliance release. 5. Credit This vulnerability was discovered by Matt Bergin (@thatguylevel) of KoreLogic, Inc. and Joshua Hardin. 6. Disclosure Timeline 2016.12.20 - KoreLogic sends vulnerability report and PoC to Barracuda. 2016.12.21 - Barracuda acknowledges receipt of the vulnerability report. 2017.01.09 - Barracuda informs KoreLogic that they are working on remediation for this issue. 2017.01.26 - Barracuda asks for additional time beyond the standard 45 business day embargo to address this and other issues reported by KoreLogic. 2017.02.27 - 45 business days have elapsed since the issue was reported. 2017.04.10 - 75 business days have elapsed since the issue was reported. 2017.05.15 - 100 business days have elapsed since the issue was reported. 2017.05.24 - Barracuda updates KoreLogic on the status of the remediation efforts. 2017.06.13 - 120 business days have elapsed since the issue was reported. 2017.06.27 - Barracuda informs KoreLogic that the issue has been fixed in the latest release of the WAF virtual appliance. 2017.07.06 - KoreLogic public disclosure. 7. Proof of Concept See 3. Technical Description The contents of this advisory are copyright(c) 2017 KoreLogic, Inc. and are licensed under a Creative Commons Attribution Share-Alike 4.0 (United States) License: http://creativecommons.org/licenses/by-sa/4.0/ KoreLogic, Inc. is a founder-owned and operated company with a proven track record of providing security services to entities ranging from Fortune 500 to small and mid-sized companies. We are a highly skilled team of senior security consultants doing by-hand security assessments for the most important networks in the U.S. and around the world. We are also developers of various tools and resources aimed at helping the security community. https://www.korelogic.com/about-korelogic.html Our public vulnerability disclosure policy is available at: https://www.korelogic.com/KoreLogic-Public-Vulnerability-Disclosure-Policy.v2.2.txt -----BEGIN PGP SIGNATURE----- iQFOBAEBCAA4FiEE+cSrtp5jQJEtra70TWWaLA4ZiQwFAlleiLAaHGRpc2Nsb3N1 cmVzQGtvcmVsb2dpYy5jb20ACgkQTWWaLA4ZiQwlZgf8Dc8cEt5Q5WQXzI/R5c0n DwSF2Pelq9YFQbebt3zoim0C2Rsygu2STHmTz0x2PKS1BtFEO1o7a/KkvhS649vO /GF1DfgN8rXN7RHUWLkiPAcmJ6rI9d//HlNge3uzEO4DtCYAFG3G1OpbD6YnyVoB E80HLFir0mbCkZXudsX2dJ8O65mZQlGzokUjuuU2mY15+RHD25Sv7Msyjezk7g5e k0vZf1IFTIEkSLCG8QVOCy9OghTkGvOb68hDxHDNCuOdGVsg5Ivk5Gd5+LTmYPJs yBqhLFGK5fZYYXOQ7j+aSoc0j2k8JM+Vw7dtXP8s8oMatVdPR7FHgVdpeXLhSp4p ZQ== =0e30 -----END PGP SIGNATURE-----