Amazon AWS CloudFormation Bootstrap Tools up to 1.4-19.9 access control
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.5 | $0-$5k | 0.00 |
A vulnerability was found in Amazon AWS CloudFormation Bootstrap Tools up to 1.4-19.9 (Cloud Software). It has been declared as critical. This vulnerability affects an unknown function. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
The Amazon Web Services (AWS) CloudFormation bootstrap tools package (aka aws-cfn-bootstrap) before 1.4-19.10 allows local users to execute arbitrary code with root privileges by leveraging the ability to create files in an unspecified directory.
The bug was discovered 08/04/2017. The weakness was presented 10/30/2017 with Amazon (Website). The advisory is shared for download at alas.aws.amazon.com. This vulnerability was named CVE-2017-9450 since 06/06/2017. The attack needs to be approached locally. The successful exploitation requires a single authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.
The vulnerability scanner Nessus provides a plugin with the ID 101959 (Amazon Linux AMI : aws-cfn-bootstrap (ALAS-2017-861)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351049 (Amazon Linux Security Advisory for aws-cfn-bootstrap: ALAS-2017-861).
Upgrading to version 1.4-19.10 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (101959).
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: 7.8VulDB Meta Temp Score: 7.6
VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
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 |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 101959
Nessus Name: Amazon Linux AMI : aws-cfn-bootstrap (ALAS-2017-861)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: AWS CloudFormation Bootstrap Tools 1.4-19.10
Timeline
06/06/2017 🔍07/25/2017 🔍
07/25/2017 🔍
07/26/2017 🔍
08/04/2017 🔍
10/30/2017 🔍
10/30/2017 🔍
10/31/2017 🔍
12/02/2019 🔍
Sources
Advisory: alas.aws.amazon.comOrganization: Amazon
Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-9450 (🔍)
SecurityFocus: 99972 - Amazon CloudFormation Bootstrap Tools CVE-2017-9450 Arbitrary Code Execution Vulnerability
Entry
Created: 10/31/2017 07:49Updated: 12/02/2019 09:29
Changes: 10/31/2017 07:49 (72), 12/02/2019 09:29 (3)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.