CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
EPSS
Percentile
41.0%
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.
Author | Note |
---|---|
rodrigo-zaiden | singularity-container includes scs-library-client code |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | singularity-container | < any | UNKNOWN |
ubuntu | 24.04 | noarch | singularity-container | < any | UNKNOWN |
github.com/sylabs/scs-library-client/commit/68ac4cab5cda0afd8758ff5b5e2e57be6a22fcfa
github.com/sylabs/scs-library-client/commit/b5db2aacba6bf1231f42dd475cc32e6355ab47b2
github.com/sylabs/scs-library-client/commit/eebd7caaab310b1fa803e55b8fc1acd9dcd2d00c
github.com/sylabs/scs-library-client/security/advisories/GHSA-7p8m-22h4-9pj7
launchpad.net/bugs/cve/CVE-2022-23538
nvd.nist.gov/vuln/detail/CVE-2022-23538
security-tracker.debian.org/tracker/CVE-2022-23538
www.cve.org/CVERecord?id=CVE-2022-23538