Heimdal Thor Agent up to 2.5.172 X.509 Certificate Validation Crafted Certificate certificate validation
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.2 | $0-$5k | 0.00 |
A vulnerability classified as critical has been found in Heimdal Thor Agent up to 2.5.172. This affects an unknown function of the component X.509 Certificate Validation. The manipulation as part of a Crafted Certificate leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
Heimdal Thor Agent 2.5.17x before 2.5.173 does not verify X.509 certificates from TLS servers, which allows remote attackers to spoof servers and obtain sensitive information via a crafted certificate.
The bug was discovered 02/15/2019. The weakness was released 03/21/2019. This vulnerability is uniquely identified as CVE-2019-8351 since 02/15/2019. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.
The vulnerability was handled as a non-public zero-day exploit for at least 34 days. During that time the estimated underground price was around $0-$5k.
Upgrading to version 2.5.173 eliminates this vulnerability.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.2
VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.1
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Certificate validationCWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Thor Agent 2.5.173
Timeline
02/15/2019 🔍02/15/2019 🔍
03/21/2019 🔍
03/23/2019 🔍
08/04/2023 🔍
Sources
Advisory: support.heimdalsecurity.comStatus: Not defined
CVE: CVE-2019-8351 (🔍)
Entry
Created: 03/23/2019 09:33Updated: 08/04/2023 14:52
Changes: 03/23/2019 09:33 (57), 05/19/2020 10:44 (1), 08/04/2023 14:52 (4)
Complete: 🔍
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