SSH.NET 2020.0.0/2020.0.1 X25519 Key Exchange System.Random entropy
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.7 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, has been found in SSH.NET 2020.0.0/2020.0.1 (SSH Server Software). Affected by this issue is the function System.Random
of the component X25519 Key Exchange. The manipulation with an unknown input leads to a entropy vulnerability. Using CWE to declare the problem leads to CWE-332. The lack of entropy available for, or used by, a Pseudo-Random Number Generator (PRNG) can be a stability and security threat. Impacted is confidentiality.
The weakness was presented 06/01/2022 as GHSA-72p8-v4hg-v45p. The advisory is available at github.com. This vulnerability is handled as CVE-2022-29245 since 04/13/2022. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1600.001 by the MITRE ATT&CK project.
Upgrading to version 2020.0.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 03c6d60736b8f7b42e44d6989a53f9b644a091fb is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.8VulDB Meta Temp Score: 4.7
VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 6.5
CNA Vector (GitHub, Inc.): 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
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: 🔍
Exploiting
Class: EntropyCWE: CWE-332 / CWE-331 / CWE-330
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: SSH.NET 2020.0.2
Patch: 03c6d60736b8f7b42e44d6989a53f9b644a091fb
Timeline
04/13/2022 🔍06/01/2022 🔍
06/01/2022 🔍
06/04/2022 🔍
Sources
Advisory: GHSA-72p8-v4hg-v45pStatus: Confirmed
CVE: CVE-2022-29245 (🔍)
Entry
Created: 06/01/2022 07:55Updated: 06/04/2022 09:41
Changes: 06/01/2022 07:55 (44), 06/04/2022 09:36 (1), 06/04/2022 09:40 (12), 06/04/2022 09:41 (1)
Complete: 🔍
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