VDB-13791 · CVE-1999-1385 · FreeBSD-SA-96:20

FreeBSD up to 2.1.6.1 ppp HOME memory corruption

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.
8.4	$0-$5k	0.00

A vulnerability, which was classified as critical, was found in FreeBSD up to 2.1.6.1 (Operating System). This affects an unknown functionality of the component ppp. The manipulation of the argument HOME as part of a Environment Variable leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 12/19/1996 as FreeBSD-SA-96:20 as not defined advisory (Website). It is possible to read the advisory at ftp.freebsd.org. This vulnerability is uniquely identified as CVE-1999-1385. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details and a exploit are known.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. The exploit is shared for download at archives.neohapsis.com. We expect the 0-day to have been worth approximately $5k-$25k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (7465) and Vulnerability Center (SBV-23331).

Productinfoedit

Type

Operating System

Name

FreeBSD

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.4

VulDB Base Score: 9.3
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2infoedit

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Exploitinginfoedit

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfoedit

12/16/1996 🔍
12/19/1996 +3 days 🔍
12/19/1996 +0 days 🔍
12/19/1996 +0 days 🔍
04/09/2004 +2667 days 🔍
08/31/2009 +1970 days 🔍
04/02/2014 +1675 days 🔍
06/17/2014 +76 days 🔍
02/13/2017 +972 days 🔍