Detections
Analytics
SCA: security update for sigstore (GHSA-hhfg-fwrw-87w7)
medium Tenable Self-Hosted Container Security Plugin ID 415763
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- sigstore-python is a Python tool for generating and verifying Sigstore signatures. Versions of sigstore-
python newer than 2.0.0 but prior to 3.6.0 perform insufficient validation of the "integration time"
present in "v2" and "v3" bundles during the verification flow: the "integration time" is verified *if* a
source of signed time (such as an inclusion promise) is present, but is otherwise trusted if no source of
signed time is present. This does not affect "v1" bundles, as the "v1" bundle format always requires an
inclusion promise. Sigstore uses signed time to support verification of signatures made against short-
lived signing keys. The impact and severity of this weakness is *low*, as Sigstore contains multiple other
enforcing components that prevent an attacker who modifies the integration timestamp within a bundle from
impersonating a valid signature. In particular, an attacker who modifies the integration timestamp can
induce a Denial of Service, but in no different manner than already possible with bundle access (e.g.
modifying the signature itself such that it fails to verify). Separately, an attacker could upload a *new*
entry to the transparency service, and substitute their new entry's time. However, this would still be
rejected at validation time, as the new entry's (valid) signed time would be outside the validity window
of the original signing certificate and would nonetheless render the attacker auditable. (CVE-2024-55655)
See Also
Plugin Details
Severity: Medium
ID: 415763
Version: Revision 1.9
Type: Local
Family: SCA Checks
Published: 1/23/2025
Updated: 7/2/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 3
Percentile: 23.92
Vendor
Vendor Severity: Low
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2024-55655
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.6
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 6.9
Threat Score: 2.7
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 12/11/2024
Vulnerability Publication Date: 12/10/2024
Reference Information
CVE: CVE-2024-55655