FreeBSD up to 2.1.6.1 ppp HOME memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

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. The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

buffer overflow in ppp program in freebsd 2.1 and earlier allows local users to gain privileges via a long home environment variable.

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).

Productinfo

Type

Name

License

  • open-source

CPE 2.3info

CPE 2.2info

CVSSv3info

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: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

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 🔍
06/17/2014 +1751 days 🔍
02/13/2017 +972 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: FreeBSD-SA-96:20
Status: Not defined

CVE: CVE-1999-1385 (🔍)
X-Force: 7465
Vulnerability Center: 23331 - FreeBSD <= 2.1 PPP HOME Environment Variable Local Privileges Escalation Vulnerability, High
OSVDB: 6085 - FreeBSD ppp HOME Environment Local Overflow

Entryinfo

Created: 06/17/2014 06:04 PM
Updated: 02/13/2017 10:33 AM
Changes: 06/17/2014 06:04 PM (54), 02/13/2017 10:33 AM (9)
Complete: 🔍

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