Nokia IPSO 3.x OpenSSH information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Nokia IPSO 3.x (Firewall Software). This affects an unknown code block of the component OpenSSH. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.

The bug was discovered 04/30/2003. The weakness was presented 12/24/2004 by Sebastian Krahmer with Nokia (Website). It is possible to read the advisory at vmware.com. This vulnerability is uniquely identified as CVE-2003-0190 since 04/01/2003. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

After even before and not, there has been an exploit disclosed. The exploit is shared for download at exploit-db.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 12 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 20650 (Ubuntu 4.10 : openssh information leakage (USN-34-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l.

Upgrading to version 3.6.1p2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at nokia.com.It is possible to mitigate the weakness by firewalling . The best possible mitigation is suggested to be applying a restrictive firewalling. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (11902), Tenable (20650) and Exploit-DB (25).

Productinfo

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Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 20650
Nessus Name: Ubuntu 4.10 : openssh information leakage (USN-34-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 65514
OpenVAS Name: SLES9: Security update for OpenSSH
OpenVAS File: 🔍
OpenVAS Family: 🔍

MetaSploit ID: ssh_enumusers.rb
MetaSploit Name: SSH Username Enumeration
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Upgrade: IPSO 3.6.1p2
Patch: nokia.com

Timelineinfo

04/15/2002 🔍
04/01/2003 +351 days 🔍
04/30/2003 +29 days 🔍
04/30/2003 +0 days 🔍
05/02/2003 +2 days 🔍
05/12/2003 +10 days 🔍
06/27/2003 +46 days 🔍
08/19/2003 +53 days 🔍
11/30/2004 +468 days 🔍
12/24/2004 +24 days 🔍
12/24/2004 +0 days 🔍
01/10/2005 +17 days 🔍
01/15/2006 +370 days 🔍
06/30/2019 +4914 days 🔍

Sourcesinfo

Vendor: nokia.com

Advisory: vmware.com
Researcher: Sebastian Krahmer
Organization: Nokia
Status: Not defined

CVE: CVE-2003-0190 (🔍)
OVAL: 🔍

X-Force: 11902 - OpenSSH PAM support enabled information leak, Medium Risk
Vulnerability Center: 1329 - Portable OpenSSH with PAM Support Reveals Usernames via Timing Attack, Low
SecurityFocus: 7342 - PAM Authentication Execution Path Timing Information Leakage Weakness
Secunia: 13631 - Nokia IPSO OpenSSH User Enumeration Security Issue, Less Critical
OSVDB: 2140 - OpenSSH w/ PAM Username Validity Timing Attack

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/10/2005 10:23
Updated: 06/30/2019 18:47
Changes: 01/10/2005 10:23 (100), 06/30/2019 18:47 (5)
Complete: 🔍

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