VDB-97577 · CVE-2017-5999 · BID 96562

sysPass up to 2.0 inc/SP/Core/Crypt.class MCRYPT_RIJNDAEL_256 inadequate encryption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in sysPass up to 2.0. The impacted element is the function MCRYPT_RIJNDAEL_256 of the file inc/SP/Core/Crypt.class. The manipulation leads to inadequate encryption. This vulnerability is uniquely identified as CVE-2017-5999. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in sysPass up to 2.0. It has been rated as problematic. This issue affects the function MCRYPT_RIJNDAEL_256 of the file inc/SP/Core/Crypt.class. The manipulation with an unknown input leads to a inadequate encryption vulnerability. Using CWE to declare the problem leads to CWE-326. The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. Impacted is confidentiality. The summary by CVE is:

An issue was discovered in sysPass 2.x before 2.1, in which an algorithm was never sufficiently reviewed by cryptographers. The fact that inc/SP/Core/Crypt.class is using the MCRYPT_RIJNDAEL_256() function (the 256-bit block version of Rijndael, not AES) instead of MCRYPT_RIJNDAEL_128 (real AES) could help an attacker to create unknown havoc in the remote system.

The bug was discovered 02/14/2017. The weakness was disclosed 03/06/2017 (GitHub Repository). The advisory is shared at github.com. The identification of this vulnerability is CVE-2017-5999 since 02/15/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 96562†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Inadequate encryption
CWE: CWE-326 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: sysPass 2.1

Timelineinfo

02/14/2017 🔍
02/14/2017 +0 days 🔍
02/15/2017 +1 days 🔍
03/06/2017 +19 days 🔍
03/06/2017 +0 days 🔍
03/06/2017 +0 days 🔍
09/04/2020 +1278 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-5999 (🔍)
GCVE (CVE): GCVE-0-2017-5999
GCVE (VulDB): GCVE-100-97577
SecurityFocus: 96562 - sysPass CVE-2017-5999 Cryptographic Security Bypass Vulnerability
OSVDB: - CVE-2017-5999 - sysPass - Weak Cryptography Issue

Entryinfo

Created: 03/06/2017 17:06
Updated: 09/04/2020 11:32
Changes: 03/06/2017 17:06 (60), 09/04/2020 11:32 (5)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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