VDB-90369 · CVE-2015-5738 · Qualys 168077

Cavium SDK 2.x on OCTEON II CN6xxx RSA-CRT information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Cavium SDK 2.x on OCTEON II CN6xxx. This issue affects some unknown processing of the component RSA-CRT. Performing a manipulation results in information disclosure. This vulnerability is cataloged as CVE-2015-5738. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Cavium SDK 2.x on OCTEON II CN6xxx. This affects some unknown processing of the component RSA-CRT. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

The RSA-CRT implementation in the Cavium Software Development Kit (SDK) 2.x, when used on OCTEON II CN6xxx Hardware on Linux to support TLS with Perfect Forward Secrecy (PFS), makes it easier for remote attackers to obtain private RSA keys by conducting a Lenstra side-channel attack.

The weakness was shared 07/26/2016 (Website). The advisory is shared at fortiguard.com. This vulnerability is uniquely identified as CVE-2015-5738 since 08/05/2015. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 168077 (OpenSuSE Security Update for libgcrypt (openSUSE-SU-2015:1596-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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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OpenVAS ID: 71978
OpenVAS Name: FortiGate: RSA-CRT key leak under certain conditions
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/05/2015 🔍
07/26/2016 +356 days 🔍
07/26/2016 +0 days 🔍
07/27/2016 +1 days 🔍
11/22/2024 +3040 days 🔍

Sourcesinfo

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

CVE: CVE-2015-5738 (🔍)
GCVE (CVE): GCVE-0-2015-5738
GCVE (VulDB): GCVE-100-90369

Entryinfo

Created: 07/27/2016 15:15
Updated: 11/22/2024 22:30
Changes: 07/27/2016 15:15 (52), 03/11/2019 19:56 (10), 11/22/2024 22:30 (17)
Complete: 🔍
Cache ID: 216::103

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

Discussion

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