SurgeFTP weak password encryption could allow attackers to obtain passwords

surgeftp-weak-password-encryption (6961)

Low Risk

Description:

NetWin SurgeFTP could allow a remote attacker to obtain user passwords. The SurgeFTP password hashing algorithm uses a single fixed salting method, which limits the number of has values and causes some hashes to correspond to multiple passwords. A remote attacker can use this vulnerability to obtain user passwords, including the administrator password, using brute force password cracking techniques.

*CVSS:

Base Score:	7
Access Vector:	Remote
Access Complexity:	Low
Authentication:	Not Required
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	5.2
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Obtain Information

Remedy:

Upgrade to the latest version of SurgeFTP (2.0i or later), available from the SurgeFTP Web site. See References.

References:

• BugTraq Mailing List, Sat Aug 04 2001 - 07:31:01 CDT: SurgeFTP admin account bruteforcable.
• SurgeFTP Web site: SurgeFTP -- Unix/Windows Ftp Server Software.
• BID-3157: SurgeFTP Weak Password Encryption Vulnerability
• CVE-2001-1356: NetWin SurgeFTP 2.0f and earlier encrypts passwords using weak hashing, a fixed salt value and modulo 40 calculations, which allows remote attackers to conduct brute force password guessing attacks against the administrator account on port 7021.
• OSVDB ID: 5560: NetWin SurgeFTP Weak Password Hashing

Platforms Affected:

• NetWin SurgeFTP Server 2.0f

Reported:

Aug 04, 2001

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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