Is CVE-2021-41087 in the CISA KEV catalog?

No. CVE-2021-41087 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-41087?

CVE-2021-41087 has a CVSS v3 base score of 5.6 (MEDIUM).

What is the EPSS score for CVE-2021-41087?

CVE-2021-41087 has an EPSS score of 0.42% (33th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-41087?

Upgrade in-toto-golang to 0.3.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-41087

MEDIUM

5.6

CVSS v3

NVD

Description

in-toto-golang is a go implementation of the in-toto framework to protect software supply chain integrity. In affected versions authenticated attackers posing as functionaries (i.e., within a trusted set of users for a layout) are able to create attestations that may bypass DISALLOW rules in the same layout. An attacker with access to trusted private keys, may issue an attestation that contains a disallowed artifact by including path traversal semantics (e.g., foo vs dir/../foo). Exploiting this vulnerability is dependent on the specific policy applied. The problem has been fixed in version 0.3.0.

CWE-345 CWE-22Path Traversal

How to fix

Remediation Available

in-toto-golangNVD

Affected:< 0.3.0Fixed in:0.3.0CVE-2021-41087derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N

Exploit Intelligence

0.42%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

github.com

Related Vulnerabilities

Other CWE-345 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-38831	High	7.8	98%	KEV + Ransom	Fix
CVE-2016-4553	High	8.6	80%	-	Fix
CVE-2016-4554	High	8.6	39%	-	Fix
CVE-2023-35719	Medium	6.8	26%	-	-
CVE-2022-26871	Critical	9.8	20%	KEV	-
CVE-2014-4936	High	9.3	17%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.