2007-2243 | OpenBSD OpenSSH improper authentication (BID-23601 / XFDB-33794)
|CVSS Meta Temp Score
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|Current Exploit Price (≈)
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|CTI Interest Score
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A vulnerability has been found in OpenBSD OpenSSH up to 4.6 (Connectivity Software) and classified as problematic. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a weak authentication vulnerability. The CWE definition for the vulnerability is CWE-287. As an impact it is known to affect confidentiality.
The weakness was disclosed 04/22/2007 by Rembrandt (Website). The advisory is available at archives.neohapsis.com. This vulnerability was named CVE-2007-2243 since 04/25/2007. The exploitation appears to be easy. 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 structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 07/14/2021).
The vulnerability scanner Nessus provides a plugin with the ID 17704 (OpenSSH S/KEY Authentication Account Enumeration), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc.. The commercial vulnerability scanner Qualys is able to test this issue with plugin 42377 (OpenSSH Version 4.6 and Prior X11 Cookie Privilege Escalation Vulnerability).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the databases at SecurityFocus (BID 23601), X-Force (33794), Vulnerability Center (SBV-33950) and Tenable (17704). The entries 38743 and 44077 are pretty similar.
VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3
NVD Base Score: 🔍
Class: Weak authentication
Status: Not defined
0-Day Time: 🔍
04/23/2007 +1 days 🔍
04/25/2007 +1 days 🔍
04/25/2007 +0 days 🔍
04/25/2007 +0 days 🔍
05/04/2007 +8 days 🔍
11/18/2011 +1659 days 🔍
11/28/2011 +10 days 🔍
03/13/2015 +1201 days 🔍
02/26/2017 +716 days 🔍
07/14/2021 +1599 days 🔍Vendor: https://www.openbsd.org/
CVE: CVE-2007-2243 (🔍)
SecurityFocus: 23601 – OpenSSH S/Key Remote Information Disclosure Vulnerability
Vulnerability Center: 33950 – OpenSSH 4.6 and earlier Remote Accounts Information Disclosure, Low
OSVDB: 34600 – OpenSSH S/KEY Authentication Account Enumeration
See also: 🔍
See the underground prices here!