cryptlib up to 3.4.4 DSA/ECDSA key management ⚔ [Disputed]

CVSS Meta Temp Score
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CTI Interest Score
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3.5$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in cryptlib up to 3.4.4. This affects an unknown part of the component DSA/ECDSA Handler. Executing a manipulation can lead to key management. This vulnerability is tracked as CVE-2018-12433. The physical device can be targeted for the attack. No exploit exists. There is ongoing doubt regarding the real existence of this vulnerability.

Detailsinfo

A vulnerability was found in cryptlib up to 3.4.4. It has been declared as problematic. This vulnerability affects an unknown code block of the component DSA/ECDSA Handler. The manipulation with an unknown input leads to a key management vulnerability. The CWE definition for the vulnerability is CWE-320. As an impact it is known to affect confidentiality. CVE summarizes:

** DISPUTED ** cryptlib through 3.4.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to either the local machine or a different virtual machine on the same physical host. NOTE: the vendor does not include side-channel attacks within its threat model.

The weakness was disclosed 06/15/2018 (Website). The advisory is shared for download at nccgroup.trust. This vulnerability was named CVE-2018-12433 since 06/14/2018. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.001.

The real existence of this vulnerability is still doubted at the moment.

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

The entries VDB-119576, VDB-119577, VDB-119578 and VDB-119579 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.6
VulDB Meta Temp Score: 3.6

VulDB Base Score: 2.2
VulDB Temp Score: 2.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.9
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Key management
CWE: CWE-320
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

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: no mitigation known
Status: 🔍

Timelineinfo

06/14/2018 🔍
06/14/2018 +0 days 🔍
06/15/2018 +1 days 🔍
06/15/2018 +0 days 🔍
08/05/2024 +2243 days 🔍

Sourcesinfo

Advisory: nccgroup.trust
Status: Not defined
Disputed: 🔍

CVE: CVE-2018-12433 (🔍)
GCVE (CVE): GCVE-0-2018-12433
GCVE (VulDB): GCVE-100-119572
See also: 🔍

Entryinfo

Created: 06/15/2018 14:03
Updated: 08/05/2024 12:51
Changes: 06/15/2018 14:03 (38), 02/19/2020 16:21 (18), 08/05/2024 12:51 (18)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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