// For flags

CVE-2022-23538

User credentials leaked to third-party service via HTTP redirect in scs-library-client

Severity Score

7.6
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

github.com/sylabs/scs-library-client is the Go client for the Singularity Container Services (SCS) Container Library Service. When the scs-library-client is used to pull a container image, with authentication, the HTTP Authorization header sent by the client to the library service may be incorrectly leaked to an S3 backing storage provider. This occurs in a specific flow, where the library service redirects the client to a backing S3 storage server, to perform a multi-part concurrent download. Depending on site configuration, the S3 service may be provided by a third party. An attacker with access to the S3 service may be able to extract user credentials, allowing them to impersonate the user. The vulnerable multi-part concurrent download flow, with redirect to S3, is only used when communicating with a Singularity Enterprise 1.x installation, or third party server implementing this flow. Interaction with Singularity Enterprise 2.x, and Singularity Container Services (cloud.sylabs.io), does not trigger the vulnerable flow. We encourage all users to update. Users who interact with a Singularity Enterprise 1.x installation, using a 3rd party S3 storage service, are advised to revoke and recreate their authentication tokens within Singularity Enterprise. There is no workaround available at this time.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-01-19 CVE Reserved
  • 2023-01-17 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-09 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-522: Insufficiently Protected Credentials
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Sylabs
Search vendor "Sylabs"
Singularity Container Services Library
Search vendor "Sylabs" for product "Singularity Container Services Library"
1.3.2
Search vendor "Sylabs" for product "Singularity Container Services Library" and version "1.3.2"
-
Affected
Sylabs
Search vendor "Sylabs"
Singularity Container Services Library
Search vendor "Sylabs" for product "Singularity Container Services Library"
1.3.3
Search vendor "Sylabs" for product "Singularity Container Services Library" and version "1.3.3"
-
Affected
Sylabs
Search vendor "Sylabs"
Singularity Container Services Library
Search vendor "Sylabs" for product "Singularity Container Services Library"
1.4.0
Search vendor "Sylabs" for product "Singularity Container Services Library" and version "1.4.0"
-
Affected
Sylabs
Search vendor "Sylabs"
Singularity Container Services Library
Search vendor "Sylabs" for product "Singularity Container Services Library"
1.4.1
Search vendor "Sylabs" for product "Singularity Container Services Library" and version "1.4.1"
-
Affected