Amazon Web Services FreeRTOS TCP Options prvCheckOptions information disclosure

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 (≈)
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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.
4.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in Amazon Web Services FreeRTOS, FreeRTOS and WITTENSTEIN WHIS Connect Middleware and classified as problematic. This affects the function prvCheckOptions of the component TCP Options Handler. Performing a manipulation results in information disclosure. This vulnerability is identified as CVE-2018-16524. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Amazon Web Services FreeRTOS, FreeRTOS and WITTENSTEIN WHIS Connect Middleware (Middleware). This affects the function prvCheckOptions of the component TCP Options Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

Amazon Web Services (AWS) FreeRTOS through 1.3.1, FreeRTOS up to V10.0.1 (with FreeRTOS+TCP), and WITTENSTEIN WHIS Connect middleware TCP/IP component allow information disclosure during parsing of TCP options in prvCheckOptions.

The bug was discovered 10/18/2018. The weakness was released 12/06/2018 (GitHub Repository). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2018-16524 since 09/05/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 49 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-127642, VDB-127643, VDB-127645 and VDB-127639. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Amazon Web Services FreeRTOS up to 1.3.1
  • FreeRTOS up to 10.0.1
  • WITTENSTEIN WHIS Connect Middleware

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/05/2018 🔍
10/18/2018 +43 days 🔍
12/06/2018 +49 days 🔍
12/06/2018 +0 days 🔍
12/07/2018 +1 days 🔍
04/18/2020 +498 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-16524 (🔍)
GCVE (CVE): GCVE-0-2018-16524
GCVE (VulDB): GCVE-100-127641
See also: 🔍

Entryinfo

Created: 12/07/2018 07:55
Updated: 04/18/2020 16:52
Changes: 12/07/2018 07:55 (60), 04/18/2020 16:52 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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