Ruby 1.8.5/1.8.6 Libraries net::ftptls improper authentication

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8$0-$5k0.00

A vulnerability has been found in Ruby 1.8.5/1.8.6 (Programming Language Software) and classified as critical. This vulnerability affects the function net::ftptls of the component Libraries. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect integrity. CVE summarizes:

The (1) Net::ftptls, (2) Net::telnets, (3) Net::imap, (4) Net::pop, and (5) Net::smtp libraries in Ruby 1.8.5 and 1.8.6 do not verify that the commonName (CN) field in a server certificate matches the domain name in a request sent over SSL, which makes it easier for remote attackers to intercept SSL transmissions via a man-in-the-middle attack or spoofed web site, different components than CVE-2007-5162.

The bug was discovered 11/01/2007. The weakness was presented 11/13/2007 (Website). The advisory is available at us-cert.gov. This vulnerability was named CVE-2007-5770 since 11/01/2007. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

It is declared as proof-of-concept. 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 $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 37552 (CentOS 4 : ruby (CESA-2007:0961)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 155989 (Oracle Enterprise Linux Update for Ruby (ELSA-2007-0961)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (38452) and Tenable (37552). See 3358, 33639, 35351 and 39605 for similar entries.

Productinfo

Type

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: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 37552
Nessus Name: CentOS 4 : ruby (CESA-2007:0961)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 59635
OpenVAS Name: Debian Security Advisory DSA 1410-1 (ruby1.8)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

10/02/2007 🔍
11/01/2007 +30 days 🔍
11/01/2007 +0 days 🔍
11/13/2007 +12 days 🔍
11/13/2007 +0 days 🔍
11/13/2007 +0 days 🔍
11/13/2007 +0 days 🔍
11/13/2007 +0 days 🔍
11/13/2007 +0 days 🔍
11/19/2007 +6 days 🔍
04/23/2009 +521 days 🔍
03/16/2015 +2153 days 🔍
07/31/2019 +1598 days 🔍

Sourcesinfo

Advisory: us-cert.gov
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-5770 (🔍)
OVAL: 🔍

X-Force: 38452
SecurityTracker: 1018938
Vulnerability Center: 16880 - Ruby Libraries Error Allows Remote Attacker to Disclose Secure Data by Man-in-the-middle Attack, Medium
SecurityFocus: 26421 - Ruby Multiple Libraries SSL Multiple Insecure Certificate Validation Weaknesses
Secunia: 26985 - Ruby Modules Common Name Verification Security Issues, Less Critical
OSVDB: 40773 - Ruby multiple libraries man-in-the-middle
Vupen: ADV-2007-4238

See also: 🔍

Entryinfo

Created: 03/16/2015 13:43
Updated: 07/31/2019 09:55
Changes: 03/16/2015 13:43 (84), 07/31/2019 09:55 (5)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!