Matt Johnston Dropbear SSH server up to 0.47 denial of service
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.8 | $0-$5k | 0.00 |
A vulnerability was found in Matt Johnston Dropbear SSH server up to 0.47 (SSH Server Software) and classified as problematic. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:
Matt Johnston Dropbear SSH server 0.47 and earlier, as used in embedded Linux devices and on general-purpose operating systems, allows remote attackers to cause a denial of service (connection slot exhaustion) via a large number of connection attempts that exceeds the MAX_UNAUTH_CLIENTS defined value of 30.
The bug was discovered 01/30/2003. The weakness was shared 03/07/2006 (Website). The advisory is available at archives.neohapsis.com. This vulnerability is handled as CVE-2006-1206 since 03/14/2006. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.
After before and not just, there has been an exploit disclosed. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1133 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 21023 (Dropbear SSH Authorization-pending Connection Saturation DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Denial of Service and running in the context r.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (25075), Tenable (21023) and Exploit-DB (1572).
Product
Type
Vendor
Name
Version
- 0.1
- 0.2
- 0.3
- 0.4
- 0.5
- 0.6
- 0.7
- 0.8
- 0.9
- 0.10
- 0.11
- 0.12
- 0.13
- 0.14
- 0.15
- 0.16
- 0.17
- 0.18
- 0.19
- 0.20
- 0.21
- 0.22
- 0.23
- 0.24
- 0.25
- 0.26
- 0.27
- 0.28
- 0.29
- 0.30
- 0.31
- 0.32
- 0.33
- 0.34
- 0.35
- 0.36
- 0.37
- 0.38
- 0.39
- 0.40
- 0.41
- 0.42
- 0.43
- 0.44
- 0.45
- 0.46
- 0.47
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 4.8
VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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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: Denial of serviceCWE: CWE-404
ATT&CK: T1499
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 21023
Nessus Name: Dropbear SSH Authorization-pending Connection Saturation DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 66215
OpenVAS Name: Dropbear SSH < 0.48 Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
01/30/2003 🔍03/07/2006 🔍
03/07/2006 🔍
03/07/2006 🔍
03/07/2006 🔍
03/08/2006 🔍
03/08/2006 🔍
03/12/2006 🔍
03/13/2006 🔍
03/14/2006 🔍
03/15/2006 🔍
03/12/2015 🔍
06/15/2019 🔍
Sources
Advisory: archives.neohapsis.comStatus: Not defined
CVE: CVE-2006-1206 (🔍)
X-Force: 25075
SecurityTracker: 1015742
Vulnerability Center: 10658 - Dropbear SSH Server DoS via 30 Simultaneous Connections, Medium
SecurityFocus: 17024 - Dropbear Remote Denial Of Service Vulnerability
OSVDB: 23960 - Dropbear SSH Authorization-pending Connection Saturation DoS
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 03/12/2015 12:19Updated: 06/15/2019 15:42
Changes: 03/12/2015 12:19 (77), 06/15/2019 15:42 (5)
Complete: 🔍
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