Amazon Web Services FreeRTOS DNS LLMNR Packet prvParseDNSReply memory corruption

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.
6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Amazon Web Services FreeRTOS, FreeRTOS and WITTENSTEIN WHIS Connect Middleware and classified as critical. This impacts the function prvParseDNSReply of the component DNS LLMNR Packet Handler. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2018-16525. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Amazon Web Services FreeRTOS, FreeRTOS and WITTENSTEIN WHIS Connect Middleware (Middleware) and classified as critical. This vulnerability affects the function prvParseDNSReply of the component DNS LLMNR Packet Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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 remote attackers to execute arbitrary code or leak information because of a Buffer Overflow during parsing of DNS\LLMNR packets in prvParseDNSReply.

The bug was discovered 10/18/2018. The weakness was disclosed 12/06/2018 (GitHub Repository). The advisory is available at github.com. This vulnerability was named CVE-2018-16525 since 09/05/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

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 $5k-$25k.

Upgrading eliminates this vulnerability.

The entries VDB-127643, VDB-127645, VDB-127639 and VDB-127640 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 6.8
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.6
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

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-2018-16525 (🔍)
GCVE (CVE): GCVE-0-2018-16525
GCVE (VulDB): GCVE-100-127642
See also: 🔍

Entryinfo

Created: 12/07/2018 07:49
Updated: 04/18/2020 16:51
Changes: 12/07/2018 07:49 (60), 04/18/2020 16:51 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!