Telecommunication Software SAMwin Contact Center Suite 5.1 Password SAMwinLIBVB.dll passwordScramble improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.04

A vulnerability classified as critical was found in Telecommunication Software SAMwin Contact Center Suite 5.1. This vulnerability affects the function passwordScramble in the library SAMwinLIBVB.dll of the component Password Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, and integrity.

The weakness was published 03/13/2014 by Tobias Ospelt and Max Moser with modzero AG as MZ-13-07 as not defined advisory (Website). The advisory is available at modzero.ch. The public release has been coordinated with the vendor. This vulnerability was named CVE-2013-10004. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. Responsible for the vulnerability is the following code:

void function passwordScramble
   n = strlen(pwd)
   pwd = toupper(pwd)
   hashsum = 0
   for (i = 0; i < n; i++) { 
       hashsum += (i+1) * pwd[i];
   }
   return hashsum
The advisory points out:
The probability that a certain hash value occurs is highly non-uniform (...) It roughly resembles a slightly skewed normal distribution centered around 3700 with a standard deviation of about 450. 90% of all possible password inputs will result in hash values between 3000 and 4500. The odds that a randomly chosen password from the 5.44 * 10^19 possible values will have the exact hash value 3700 is about 1:1138. An attacker is able to exploit this statistical property to speed up a brute-force attack: he constructs a list of password candidates with exactly one password for every possible hash value. Optimally, he guesses candidates from this list in order of descending probability.

The vulnerability was handled as a non-public zero-day exploit for at least 174 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 6.2 eliminates this vulnerability. The advisory contains the following remark:

It is recommended to limit the number of possible password tries for all accounts. The vendor will not provide any fixes for previous versions.

Similar entries are available at 12789 and 12788.

Affected

  • Telecommunication Software SAMwin Contact Center Suite 5.1
  • Telecommunication Software SAMwin Agent 5.01.19.06

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.5
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SAMwin Contact Center Suite 6.2

Timelineinfo

09/20/2013 🔍
09/24/2013 +4 days 🔍
03/13/2014 +170 days 🔍
04/03/2014 +21 days 🔍
05/24/2022 +2973 days 🔍

Sourcesinfo

Advisory: MZ-13-07
Researcher: Tobias Ospelt/Max Moser
Organization: modzero AG
Status: Not defined
Coordinated: 🔍

CVE: CVE-2013-10004 (🔍)
See also: 🔍

Entryinfo

Created: 04/03/2014 05:21 PM
Updated: 05/24/2022 03:15 PM
Changes: 04/03/2014 05:21 PM (53), 03/31/2019 09:58 PM (1), 05/24/2022 03:15 PM (3)
Complete: 🔍

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