2021-21786 | IObit Advanced SystemCare Ultimate IRP Packet access control (TALOS-2021-1253)
| CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system. |
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack. |
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability. |
|---|---|---|
| 5.3 | $0-$5k | 0.88 |
A vulnerability was found in IObit Advanced SystemCare Ultimate 14.2.0.220. It has been classified as critical. This affects some unknown processing of the component IRP Packet Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-284. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
A privilege escalation vulnerability exists in the IOCTL 0x9c406144 handling of IOBit Advanced SystemCare Ultimate 14.2.0.220. A specially crafted I/O request packet (IRP) can lead to increased privileges. An attacker can send a malicious IRP to trigger this vulnerability.
The weakness was disclosed 07/08/2021 as TALOS-2021-1253. It is possible to read the advisory at talosintelligence.com. This vulnerability is uniquely identified as CVE-2021-21786 since 01/04/2021. The exploitability is told to be easy. Access to the local network is required for this attack to succeed. Required for exploitation is a authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/10/2021). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Vendor
Name
VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Privilege escalation
CWE: CWE-284
ATT&CK: T1068
Local: No
Remote: Partially
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
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Threat Intelligence
Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: no mitigation known
Status: 🔍
0-Day Time: 🔒
01/04/2021 CVE assigned
07/08/2021 Advisory disclosed
07/08/2021 VulDB entry created
07/10/2021 VulDB last updateAdvisory: TALOS-2021-1253
Status: Not defined
CVE: CVE-2021-21786 (🔒)
Created: 07/08/2021 10:11
Updated: 07/10/2021 18:02
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍
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