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.
7.3	$0-$5k	0.00

A vulnerability was found in Prosody up to 0.9.8 and classified as critical. Affected by this issue is an unknown code block of the component mod_dialback. The manipulation with an unknown input leads to a weak prng vulnerability. Using CWE to declare the problem leads to CWE-338. The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The mod_dialback module in Prosody before 0.9.9 does not properly generate random values for the secret token for server-to-server dialback authentication, which makes it easier for attackers to spoof servers via a brute force attack.

The weakness was shared 01/12/2016 by Thijs Alkemade (Website). The advisory is shared for download at blog.prosody.im. This vulnerability is handled as CVE-2016-1232 since 12/27/2015. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.001.

The vulnerability scanner Nessus provides a plugin with the ID 87975 (Debian DLA-391-1 : prosody security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124593 (Fedora Security Update for prosody (FEDORA-2016-e289f41b76)).

Upgrading to version 0.9.9 eliminates this vulnerability. A possible mitigation has been published 4 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (87975). The entry 80203 is related to this item.

Productinfo

Name

• Prosody

Version

• 0.9.0
• 0.9.1
• 0.9.2
• 0.9.3
• 0.9.4
• 0.9.5
• 0.9.6
• 0.9.7
• 0.9.8

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

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: 🔍

Exploitinginfo

Class: Weak prng
CWE: CWE-338 / CWE-331 / CWE-330
ATT&CK: T1600.001

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: 87975
Nessus Name: Debian DLA-391-1 : prosody security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703439
OpenVAS Name: Debian Security Advisory DSA 3439-1 (prosody - security update)
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: 🔍

Upgrade: Prosody 0.9.9

Timelineinfo

12/27/2015 🔍
01/08/2016 +12 days 🔍
01/08/2016 +0 days 🔍
01/12/2016 +4 days 🔍
01/12/2016 +0 days 🔍
01/13/2016 +1 days 🔍
01/16/2016 +3 days 🔍
01/19/2016 +3 days 🔍
01/28/2016 +9 days 🔍
07/03/2022 +2348 days 🔍

Sourcesinfo

Advisory: FEDORA-2016-38e48069f8
Researcher: Thijs Alkemade
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-1232 (🔍)
OVAL: 🔍

Vulnerability Center: 56256 - Prosody <0.9.9 Remote Spoofing Vulnerability in mod_dialback, Medium
SecurityFocus: 79946 - Prosody XMPP Server Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 01/13/2016 09:26
Updated: 07/03/2022 08:02
Changes: 01/13/2016 09:26 (66), 07/22/2018 10:20 (21), 07/03/2022 08:02 (4)
Complete: 🔍

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