Dell EMC RSA BSAFE Micro Edition Suite ASN.1 Data resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Dell EMC RSA BSAFE Micro Edition Suite and BSAFE Crypto-C Micro Edition. Affected is an unknown function of the component ASN.1 Data Handler. Such manipulation leads to resource consumption. This vulnerability is uniquely identified as CVE-2018-11056. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Dell EMC RSA BSAFE Micro Edition Suite and BSAFE Crypto-C Micro Edition (version unknown). It has been rated as problematic. Affected by this issue is an unknown function of the component ASN.1 Data Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

RSA BSAFE Micro Edition Suite, prior to 4.1.6.1 (in 4.1.x), and RSA BSAFE Crypto-C Micro Edition versions prior to 4.0.5.3 (in 4.0.x) contain an Uncontrolled Resource Consumption ('Resource Exhaustion') vulnerability when parsing ASN.1 data. A remote attacker could use maliciously constructed ASN.1 data that would exhaust the stack, potentially causing a Denial Of Service.

The bug was discovered 08/28/2018. The weakness was disclosed 08/31/2018 as not defined mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2018-11056 since 05/14/2018. The exploitation is known to be easy. The attack may be launched remotely. The successful exploitation requires a simple authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

The entries VDB-123450, VDB-123451, VDB-123453 and VDB-124067 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Dell): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
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: 🔍

Timelineinfo

05/14/2018 🔍
08/28/2018 +106 days 🔍
08/31/2018 +2 days 🔍
08/31/2018 +0 days 🔍
09/01/2018 +1 days 🔍
05/06/2023 +1708 days 🔍

Sourcesinfo

Vendor: dellemc.com

Advisory: DSA-2018-128
Status: Not defined

CVE: CVE-2018-11056 (🔍)
GCVE (CVE): GCVE-0-2018-11056
GCVE (VulDB): GCVE-100-123452
See also: 🔍

Entryinfo

Created: 09/01/2018 08:12
Updated: 05/06/2023 12:21
Changes: 09/01/2018 08:12 (58), 03/19/2020 19:09 (1), 05/06/2023 12:14 (4), 05/06/2023 12:21 (12)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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