CVE-2021-33540 : In certain devices of the Phoenix Contact AXL F BK and IL BK product families an undocumented password protected FTP acc

In certain devices of the Phoenix Contact AXL F BK and IL BK product families an undocumented password protected FTP access to the root directory exists.

Published 2021-06-25 19:15:10

Updated 2021-07-02 00:05:34

Source CERT VDE

View at NVD, CVE.org

Products affected by CVE-2021-33540

Phoenixcontact » Axl F Bk Pn Firmware
cpe:2.3:o:phoenixcontact:axl_f_bk_pn_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Axl F Bk Pn » Version: N/A
Phoenixcontact » Axl F Bk Eth Firmware
Versions before (<) 1.30
cpe:2.3:o:phoenixcontact:axl_f_bk_eth_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Axl F Bk Eth » Version: N/A
Phoenixcontact » Axl F Bk Eth Xc Firmware
Versions before (<) 1.30
cpe:2.3:o:phoenixcontact:axl_f_bk_eth_xc_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Axl F Bk Eth Xc » Version: N/A
Phoenixcontact » Axl F Bk Pn Tps Xc Firmware
Versions before (<) 1.30
cpe:2.3:o:phoenixcontact:axl_f_bk_pn_tps_xc_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Axl F Bk Pn Tps Xc » Version: N/A
Phoenixcontact » Axl F Bk Pn Tps Firmware
Versions before (<) 1.30
cpe:2.3:o:phoenixcontact:axl_f_bk_pn_tps_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Axl F Bk Pn Tps » Version: N/A
Phoenixcontact » Axl F Bk Eip Firmware
Versions before (<) 1.30
cpe:2.3:o:phoenixcontact:axl_f_bk_eip_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Axl F Bk Eip » Version: N/A
Phoenixcontact » Axl F Bk Eip Ef Firmware
Versions before (<) 1.30
cpe:2.3:o:phoenixcontact:axl_f_bk_eip_ef_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Axl F Bk Eip Ef » Version: N/A
Phoenixcontact » Axl F Bk S35 Firmware
Versions before (<) 1.40
cpe:2.3:o:phoenixcontact:axl_f_bk_s35_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Axl F Bk S35 » Version: N/A
Phoenixcontact » Axl F Bk Pn Xc Firmware
cpe:2.3:o:phoenixcontact:axl_f_bk_pn_xc_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Axl F Bk Pn Xc » Version: N/A
Phoenixcontact » Axl F Bk Eth Net2 Firmware
cpe:2.3:o:phoenixcontact:axl_f_bk_eth_net2_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Axl F Bk Eth Net2 » Version: N/A
Phoenixcontact » Axl F Bk Sas Firmware
cpe:2.3:o:phoenixcontact:axl_f_bk_sas_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Axl F Bk Sas » Version: N/A
Phoenixcontact » Il Pn Bk-pac Firmware
cpe:2.3:o:phoenixcontact:il_pn_bk-pac_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Il Pn Bk-pac » Version: N/A
Phoenixcontact » Il Pn Bk Di8 Do4 2tx-pac Firmware
cpe:2.3:o:phoenixcontact:il_pn_bk_di8_do4_2tx-pac_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Il Pn Bk Di8 Do4 2tx-pac » Version: N/A
Phoenixcontact » Il Pn Bk Di8 Do4 2scrj-pac Firmware
cpe:2.3:o:phoenixcontact:il_pn_bk_di8_do4_2scrj-pac_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Il Pn Bk Di8 Do4 2scrj-pac » Version: N/A
Phoenixcontact » Il Eth Bk Di8 Do4 2tx-xc-pac Firmware
cpe:2.3:o:phoenixcontact:il_eth_bk_di8_do4_2tx-xc-pac_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Il Eth Bk Di8 Do4 2tx-xc-pac » Version: N/A
Phoenixcontact » Il Eth Bk Di8 Do4 2tx-pac Firmware
cpe:2.3:o:phoenixcontact:il_eth_bk_di8_do4_2tx-pac_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Il Eth Bk Di8 Do4 2tx-pac » Version: N/A
Phoenixcontact » Il Eip Bk Di8 Do4 2tx-pac Firmware
cpe:2.3:o:phoenixcontact:il_eip_bk_di8_do4_2tx-pac_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Il Eip Bk Di8 Do4 2tx-pac » Version: N/A
Phoenixcontact » Il S3 Bk Di8 Do4 2tx-pac Firmware
cpe:2.3:o:phoenixcontact:il_s3_bk_di8_do4_2tx-pac_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Phoenixcontact » Il S3 Bk Di8 Do4 2tx-pac » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-33540

EPSS FAQ

0.09%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 38 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-33540

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.3	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L	3.9	3.4	CERT VDE
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: Low Availability: Low
7.3	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L	3.9	3.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: Low Availability: Low

CWE ids for CVE-2021-33540

CWE-798 Use of Hard-coded Credentials

The product contains hard-coded credentials, such as a password or cryptographic key.

Assigned by: info@cert.vde.com (Primary)

References for CVE-2021-33540

https://cert.vde.com/en-us/advisories/vde-2021-021

PHOENIX CONTACT : Security Advisory for AXL F BK and IL BK products — English (USA)
Third Party Advisory

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Vulnerability Details : CVE-2021-33540

Products affected by CVE-2021-33540

Exploit prediction scoring system (EPSS) score for CVE-2021-33540

CVSS scores for CVE-2021-33540

CWE ids for CVE-2021-33540

References for CVE-2021-33540