CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.4 | $0-$5k | 0.00 |
A vulnerability classified as problematic has been found in Lynis up to 2.4.x. Affected is an unknown code block of the component Test Handler. The manipulation as part of a Symlink leads to a access control vulnerability (Temporary). CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
Unspecified tests in Lynis before 2.5.0 allow local users to write to arbitrary files or possibly gain privileges via a symlink attack on a temporary file.
The bug was discovered 06/07/2017. The weakness was shared 06/08/2017 by Michael Scherer (Website). The advisory is available at lists.fedoraproject.org. This vulnerability is traded as CVE-2017-8108 since 04/25/2017. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.
The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 101000 (Amazon Linux AMI : lynis (ALAS-2017-847)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context l.
Upgrading to version 2.5.0 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (101000).
Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
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: 🔍
Exploiting
Name: TemporaryClass: Access control / Temporary
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
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: 101000
Nessus Name: Amazon Linux AMI : lynis (ALAS-2017-847)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Lynis 2.5.0
Timeline
04/25/2017 🔍06/07/2017 🔍
06/08/2017 🔍
06/08/2017 🔍
06/08/2017 🔍
06/22/2017 🔍
06/23/2017 🔍
06/27/2017 🔍
12/08/2022 🔍
Sources
Advisory: FEDORA-2017-8d625a8d2bResearcher: Michael Scherer
Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-8108 (🔍)
SecurityFocus: 99288 - CISOfy Lynis CVE-2017-8108 Symlink Local Privilege Escalation Vulnerability
Entry
Created: 06/08/2017 23:27Updated: 12/08/2022 09:23
Changes: 06/08/2017 23:27 (71), 10/14/2019 18:32 (5), 12/08/2022 09:23 (5)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.