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CiscoCVE-2021-1145

HistoryJan 13, 2021 - 10:15 p.m.

CVE-2021-1145

2021-01-1322:15:14

CWE-61

CWE-59

cisco

web.nvd.nist.gov

cve-2021-1145

cisco

staros

sftp

asr 5000 series routers

vulnerability

remote attacker

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.4

Confidence

High

EPSS

0.002

Percentile

52.1%

JSON

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.

Affected configurations

Nvd

Node

ciscostarosRange<21.19.7

AND

ciscoasr_5000Match-

ciscoasr_5500Match-

ciscoasr_5700Match-

VendorProductVersionCPE
ciscostaros*cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*
ciscoasr_5000-cpe:2.3:h:cisco:asr_5000:-:*:*:*:*:*:*:*
ciscoasr_5500-cpe:2.3:h:cisco:asr_5500:-:*:*:*:*:*:*:*
ciscoasr_5700-cpe:2.3:h:cisco:asr_5700:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	staros	*	cpe:2.3:o:cisco:staros::::::::
cisco	asr_5000	-	cpe:2.3:h:cisco:asr_5000:-:::::::*
cisco	asr_5500	-	cpe:2.3:h:cisco:asr_5500:-:::::::*
cisco	asr_5700	-	cpe:2.3:h:cisco:asr_5700:-:::::::*

CNA Affected

[
  {
    "product": "Cisco ASR 5000 Series Software",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-file-read-L3RDvtey

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.4

Confidence

High

EPSS

0.002

Percentile

52.1%

JSON

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