Is CVE-2021-1145 in the CISA KEV catalog?

No. CVE-2021-1145 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-1145?

CVE-2021-1145 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2021-1145?

CVE-2021-1145 has an EPSS score of 1.27% (66th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-1145?

Upgrade staros to 21.19.7 or later.

CVE & CISA-KEV Catalog

CVE-2021-1145

MEDIUM

6.5

CVSS v3

NVD

Description

A vulnerability in the Secure FTP (SFTP) of Cisco StarOS for Cisco ASR 5000 Series Routers could allow an authenticated, remote attacker to read arbitrary files on an affected device. To exploit this vulnerability, the attacker would need to have valid credentials on the affected device. The vulnerability is due to insecure handling of symbolic links. An attacker could exploit this vulnerability by sending a crafted SFTP command to an affected device. A successful exploit could allow the attacker to read arbitrary files on the affected device.

CWE-61 CWE-59Link Following

How to fix

Remediation Available

starosNVD

Affected:< 21.19.7Fixed in:21.19.7CVE-2021-1145derived 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 VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.27%probability of exploitation in 30 days

66thpercentile

Moderate risk: more likely to be exploited than 66% of all known CVEs.

References

Vendor Advisory1

tools.cisco.com

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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.