LiquidVPN Client up to 1.37 on macos XPC Service command_line os command injection
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.1 | $0-$5k | 0.00 |
A vulnerability classified as critical was found in LiquidVPN Client up to 1.37 on macos. This vulnerability affects an unknown function of the component XPC Service. The manipulation of the argument command_line
as part of a Parameter leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
Multiple local privilege escalation vulnerabilities have been identified in the LiquidVPN client through 1.37 for macOS. An attacker can communicate with an unprotected XPC service and directly execute arbitrary OS commands as root or load a potentially malicious kernel extension because com.smr.liquidvpn.OVPNHelper uses the system function to execute the "command_line" parameter as a shell command.
The bug was discovered 10/31/2018. The weakness was released 11/20/2018 as EDB-ID 45782 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2018-18857 since 10/30/2018. The attack needs to be approached locally. The successful exploitation requires a single authentication. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1202.
After immediately, there has been an exploit disclosed. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $0-$5k.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at Exploit-DB (45782). Entries connected to this vulnerability are available at 127035, 127037 and 127038.
Product
Name
Version
- 1.0
- 1.1
- 1.2
- 1.3
- 1.4
- 1.5
- 1.6
- 1.7
- 1.8
- 1.9
- 1.10
- 1.11
- 1.12
- 1.13
- 1.14
- 1.15
- 1.16
- 1.17
- 1.18
- 1.19
- 1.20
- 1.21
- 1.22
- 1.23
- 1.24
- 1.25
- 1.26
- 1.27
- 1.28
- 1.29
- 1.30
- 1.31
- 1.32
- 1.33
- 1.34
- 1.35
- 1.36
- 1.37
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.8VulDB Meta Temp Score: 7.4
VulDB Base Score: 7.8
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
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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: Os command injectionCWE: CWE-78 / CWE-74 / CWE-707
ATT&CK: T1202
Local: Yes
Remote: No
Availability: 🔍
Access: Public
Status: Proof-of-Concept
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: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Exploit Delay Time: 🔍
Timeline
10/30/2018 🔍10/31/2018 🔍
11/20/2018 🔍
11/20/2018 🔍
11/20/2018 🔍
11/20/2018 🔍
11/21/2018 🔍
04/14/2020 🔍
Sources
Advisory: EDB-ID 45782Status: Not defined
CVE: CVE-2018-18857 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍
Entry
Created: 11/21/2018 12:23Updated: 04/14/2020 10:57
Changes: 11/21/2018 12:23 (67), 04/14/2020 10:57 (1)
Complete: 🔍
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