CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.6 | $0-$5k | 0.00 |
A vulnerability was found in FreeBSD 1.5 (Operating System). It has been classified as critical. Affected is an unknown function of the component telnetd. The manipulation as part of a Environment Variable leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
Vulnerability in telnetd in FreeBSD 1.5 allows local users to gain root privileges by modifying critical environmental variables that affect the behavior of telnetd.
The weakness was disclosed 12/08/2000 by Jouko Pynnonen as confirmed advisory (Website). The advisory is available at ftp.NetBSD.ORG. This vulnerability is traded as CVE-2001-0093. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.
A public exploit has been developed by Teso and been published 7 months after the advisory. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (5733) and Exploit-DB (409). The entries 16423 and 16444 are pretty similar.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.4VulDB Meta Temp Score: 7.6
VulDB Base Score: 8.4
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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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: 🔍
Exploiting
Class: Privileges managementCWE: CWE-269 / CWE-266
ATT&CK: T1068
Local: Yes
Remote: No
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Teso
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Exploit Delay Time: 🔍
Timeline
12/08/2000 🔍02/12/2001 🔍
06/09/2001 🔍
06/09/2001 🔍
04/09/2004 🔍
07/03/2014 🔍
05/29/2018 🔍
Sources
Product: freebsd.orgAdvisory: ftp.NetBSD.ORG
Researcher: Jouko Pynnonen
Status: Confirmed
CVE: CVE-2001-0093 (🔍)
X-Force: 5733
OSVDB: 6106 - BSD telnetd Environment Variable Privilege Escalation
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍
Entry
Created: 07/03/2014 11:15Updated: 05/29/2018 09:21
Changes: 07/03/2014 11:15 (53), 05/29/2018 09:21 (10)
Complete: 🔍
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