CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.7 | $0-$5k | 0.00 |
A vulnerability has been found in Dropbear SSH up to 2016 (SSH Server Software) and classified as critical. This vulnerability affects an unknown function of the component dropbearconvert. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
The dropbearconvert command in Dropbear SSH before 2016.74 allows attackers to execute arbitrary code via a crafted OpenSSH key file.
The bug was discovered 03/14/2016. The weakness was published 03/03/2017 by Hanno Böck (oss-sec). The advisory is available at openwall.com. This vulnerability was named CVE-2016-7407 since 09/09/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.
The vulnerability was handled as a non-public zero-day exploit for at least 343 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 97266 (GLSA-201702-23 : Dropbear: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38670 (Dropbear SSH Multiple Security Vulnerabilities).
Upgrading to version 2016.74 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (97266). Similar entries are available at 97512, 97509 and 97511.
Product
Type
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: 8.0VulDB Meta Temp Score: 7.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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: 🔍
NVD Base Score: 🔍
Exploiting
Class: Input validationCWE: CWE-20
ATT&CK: Unknown
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 |
Nessus ID: 97266
Nessus Name: GLSA-201702-23 : Dropbear: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 803656
OpenVAS Name: Dropbear SSH Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Dropbear SSH 2016.74
Timeline
03/14/2016 🔍09/09/2016 🔍
09/14/2016 🔍
02/20/2017 🔍
02/21/2017 🔍
03/03/2017 🔍
03/03/2017 🔍
03/04/2017 🔍
09/03/2020 🔍
Sources
Advisory: openwall.comResearcher: Hanno Böck
Status: Not defined
Confirmation: 🔍
CVE: CVE-2016-7407 (🔍)
SecurityFocus: 92972 - Dropbear CVE-2016-7407 Local Code Execution Vulnerability
OSVDB: - CVE-2016-7407 - Dropbear SSH - Code Execution Issue
See also: 🔍
Entry
Created: 03/04/2017 13:53Updated: 09/03/2020 18:42
Changes: 03/04/2017 13:53 (79), 09/03/2020 18:42 (3)
Complete: 🔍
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