Multiple vulnerabilities in Siemens Control Center Server (CCS)

1) Improper Authentication

EUVDB-ID: #VU23596

Risk: Medium

CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-18337

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the XML-based communication protocol as provided by default on ports 5444/tcp and 5440/tcp. A remote attacker can bypass authentication process and read the CCS users database, including the passwords of all users in obfuscated cleartext.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Control Center Server (CCS): before 1.5.0

External links

http://cert-portal.siemens.com/productcert/txt/ssa-761844.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Improper Authentication

EUVDB-ID: #VU23603

Risk: Medium

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-18341

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the SFTP service (default port 22/tcp). A remote attacker can bypass authentication process and read data from the EDIR directory, e.g. the list of all configured stations.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Control Center Server (CCS): before 1.5.0

External links

http://cert-portal.siemens.com/productcert/txt/ssa-761844.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Path traversal

EUVDB-ID: #VU23597

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-18338

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the XML-based communication protocol as provided by default on ports 5444/tcp and 5440/tcp. A remote authenticated attacker can send a specially crafted HTTP request and list arbitrary directories or read files outside of the CCS application context.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Control Center Server (CCS): before 1.5.0

External links

http://cert-portal.siemens.com/productcert/txt/ssa-761844.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Path traversal

EUVDB-ID: #VU25993

Risk: Medium

CVSSv3.1: 6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-19290

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote authenticated attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Control Center Server (CCS): before 1.5.0

External links

http://cert-portal.siemens.com/productcert/txt/ssa-761844.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Cleartext transmission of sensitive information

EUVDB-ID: #VU23595

Risk: Medium

CVSSv3.1: 4.5 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-13947

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to the user configuration menu in the web interface transfers user passwords in cleartext to the client (browser). A remote authenticated administrator with ability to intercept network traffic can gain access to sensitive data.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Control Center Server (CCS): before 1.5.0

External links

http://cert-portal.siemens.com/productcert/txt/ssa-761844.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Cleartext storage of sensitive information

EUVDB-ID: #VU25994

Risk: Medium

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-19291

CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the affected product maintains a log file that stores login credentials in cleartext. A remote authenticated attacker can obtain credentials when the FTP service is enabled.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Control Center Server (CCS): before 1.5.0

External links

http://cert-portal.siemens.com/productcert/txt/ssa-761844.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Path traversal

EUVDB-ID: #VU23604

Risk: High

CVSSv3.1: 9.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-18342

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the SFTP service. A remote authenticated attacker can send a specially crafted SFTP request and read arbitrary files on the system.

Note: In conjunction with CVE-2019-18341, an unauthenticated remote attacker with network access to the CCS server can exploit this vulnerability to read or delete arbitrary files, or access other resources on the same server.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Control Center Server (CCS): before 1.5.0

External links

http://cert-portal.siemens.com/productcert/txt/ssa-761844.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) SQL injection

EUVDB-ID: #VU25995

Risk: High

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-19292

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data in XML-based communication protocol. A remote authenticated attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Control Center Server (CCS): before 1.5.0

External links

http://cert-portal.siemens.com/productcert/txt/ssa-761844.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Cross-site scripting

EUVDB-ID: #VU25996

Risk: Low

CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-19293

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Control Center Server (CCS): before 1.5.0

External links

http://cert-portal.siemens.com/productcert/txt/ssa-761844.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Stored cross-site scripting

EUVDB-ID: #VU25997

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-19294

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in several input fields. A remote authenticated attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Control Center Server (CCS): before 1.5.0

External links

http://cert-portal.siemens.com/productcert/txt/ssa-761844.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Insufficient Logging

EUVDB-ID: #VU25998

Risk: Medium

CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-19295

CWE-ID: CWE-778 - Insufficient Logging

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the affected device does not enforce logging of security-relevant activities in the XML-based communication protocol. A remote authenticated attacker can perform covert actions not visible in the application log.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Control Center Server (CCS): before 1.5.0

External links

http://cert-portal.siemens.com/productcert/txt/ssa-761844.txt

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.