CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.3 | $0-$5k | 0.00 |
A vulnerability was found in Linux Kernel up to 4.18.6 (Operating System). It has been classified as critical. Affected is some unknown processing of the component overlayfs Mount Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
An issue was discovered in the Linux kernel through 4.18.6. Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem.
The bug was discovered 07/29/2018. The weakness was presented 09/21/2018 as Bug 1106512 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.suse.com. This vulnerability is traded as CVE-2018-16597 since 09/06/2018. The attack needs to be approached locally. Required for exploitation is a authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.
The vulnerability was handled as a non-public zero-day exploit for at least 54 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 118194 (openSUSE Security Update : the Linux Kernel (openSUSE-2018-1184)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171824 (OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2018:3202-1)).
Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (118194). See 113823, 120203, 120204 and 120205 for similar entries.
Product
Type
Vendor
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: 5.4VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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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: Access controlCWE: CWE-264
ATT&CK: T1068
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 118194
Nessus Name: openSUSE Security Update : the Linux Kernel (openSUSE-2018-1184)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: git.kernel.org
Timeline
07/29/2018 🔍09/06/2018 🔍
09/18/2018 🔍
09/21/2018 🔍
09/21/2018 🔍
09/22/2018 🔍
10/17/2018 🔍
10/18/2018 🔍
05/17/2023 🔍
Sources
Vendor: kernel.orgAdvisory: Bug 1106512
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-16597 (🔍)
SecurityFocus: 105394 - Linux Kernel CVE-2018-16597 Local Security Bypass Vulnerability
See also: 🔍
Entry
Created: 09/22/2018 07:33Updated: 05/17/2023 14:46
Changes: 09/22/2018 07:33 (77), 03/26/2020 14:12 (6), 05/17/2023 14:46 (4)
Complete: 🔍
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