SUSE Linux Enterprise Server update for SUSE Manager Client Tools



Published: 2021-03-22
Risk High
Patch available YES
Number of vulnerabilities 10
CVE ID CVE-2020-28243
CVE-2020-28972
CVE-2020-35662
CVE-2021-25281
CVE-2021-25282
CVE-2021-25283
CVE-2021-25284
CVE-2021-3144
CVE-2021-3148
CVE-2021-3197
CWE ID CWE-264
CWE-295
CWE-284
CWE-22
CWE-94
CWE-532
CWE-287
CWE-77
CWE-78
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #4 is available.
Public exploit code for vulnerability #5 is available.
Vulnerable software
Subscribe
SUSE Linux Enterprise Server
Operating systems & Components / Operating system

Vendor SuSE

Security Advisory

1) Security restrictions bypass

Risk: Medium

CVSSv3.1: 7.3 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-28243

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions, which leads to security restrictions bypass and privilege escalation. A remote user can create files in any non-blacklisted directory via a command injection in a process name.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

SUSE Linux Enterprise Server: 11 SP3, 11 SP4

CPE External links

https://www.suse.com/support/update/announcement/2021/suse-su-202114682-1/

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. However, proof of concept for this vulnerability is available.

2) Improper Certificate Validation

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-28972

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to absent validation of SSL/TLS certificates. A remote attacker can perform MitM attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

SUSE Linux Enterprise Server: 11 SP3, 11 SP4

CPE External links

https://www.suse.com/support/update/announcement/2021/suse-su-202114682-1/

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) Improper Certificate Validation

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-35662

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to improper TLS certificate validation. A remote attacker can force the application to accept an untrusted certificate and perform MitM attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

SUSE Linux Enterprise Server: 11 SP3, 11 SP4

CPE External links

https://www.suse.com/support/update/announcement/2021/suse-su-202114682-1/

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.

4) Improper access control

Risk: Medium

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:F/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-25281

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. The salt-api does not honor eauth credentials for the wheel_async client. A remote attacker can remotely run any wheel modules on the master.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

SUSE Linux Enterprise Server: 11 SP3, 11 SP4

CPE External links

https://www.suse.com/support/update/announcement/2021/suse-su-202114682-1/

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. However, a fully functional exploit for this vulnerability is available.

5) Path traversal

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:F/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-25282

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

Exploit availability: Yes

Description

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

The vulnerability exists due to input validation error when processing directory traversal sequences within the salt.wheel.pillar_roots.write method. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

SUSE Linux Enterprise Server: 11 SP3, 11 SP4

CPE External links

https://www.suse.com/support/update/announcement/2021/suse-su-202114682-1/

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. However, a fully functional exploit for this vulnerability is available.

6) Code Injection

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-25283

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a user attacker to perform server-side template injection attacks.

The vulnerability exists due to improper input validation. A remote user can send a specially crafted request and execute arbitrary code on the target system via the SaltAPI fix directory traversal in wheel.pillar_roots.write (described in #VU50980).


Mitigation

Install updates from vendor's repository.

Vulnerable software versions

SUSE Linux Enterprise Server: 11 SP3, 11 SP4

CPE External links

https://www.suse.com/support/update/announcement/2021/suse-su-202114682-1/

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) Inclusion of Sensitive Information in Log Files

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-25284

CWE-ID: CWE-532 - Information Exposure Through Log Files

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to salt.modules.cmdmod stores sensitive information, such as passwords into the /var/log/salt/minion file. A local user can read the log files and gain access to sensitive data.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

SUSE Linux Enterprise Server: 11 SP3, 11 SP4

CPE External links

https://www.suse.com/support/update/announcement/2021/suse-su-202114682-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

8) Improper Authentication

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-3144

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 when processing authentication requests for expired eauth tokens. A remote attacker can re-use one more time expired eauth tokens to run command against the salt master or minions.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

SUSE Linux Enterprise Server: 11 SP3, 11 SP4

CPE External links

https://www.suse.com/support/update/announcement/2021/suse-su-202114682-1/

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.

9) Command Injection

Risk: Medium

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

CVE-ID: CVE-2021-3148

CWE-ID: CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary commands within the application.

The vulnerability exists due to improper input validation, related to handling single and double quotes, within the salt.utils.thin.gen_thin() function in salt/utils/thin.py. A remote user can send a specially crafted HTTP request to the SaltAPI and execute arbitrary commands.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

SUSE Linux Enterprise Server: 11 SP3, 11 SP4

CPE External links

https://www.suse.com/support/update/announcement/2021/suse-su-202114682-1/

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.

10) OS Command Injection

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-3197

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation within the salt-api ssh client. A remote attacker can include the ProxyCommand in an argument, or via ssh_options provided in an API request and execute arbitrary commands on the system.


Mitigation

Install updates from vendor's repository.

Vulnerable software versions

SUSE Linux Enterprise Server: 11 SP3, 11 SP4

CPE External links

https://www.suse.com/support/update/announcement/2021/suse-su-202114682-1/

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.



###SIDEBAR###