CVE-2021-1145

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.

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.0 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:N/A:N

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-file-read-L3RDvtey	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:asr_5000:-:::::::*
	cpe:2.3:h:cisco:asr_5500:-:::::::*
	cpe:2.3:h:cisco:asr_5700:-:::::::*

History

No history.

Information

Published : 2021-01-13 22:15

Updated : 2024-02-28 18:08

NVD link : CVE-2021-1145

Mitre link : CVE-2021-1145

CVE.ORG link : CVE-2021-1145

JSON object : View

Products Affected

cisco

asr_5000
staros
asr_5700
asr_5500

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

CWE-61

UNIX Symbolic Link (Symlink) Following

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