Remote code execution in Lenovo Service Framework



Published: 2017-10-18
Risk High
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2017-3758
CVE-2017-3759
CVE-2017-3760
CVE-2017-3761
CWE-ID CWE-284
CWE-300
CWE-77
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Lenovo Service Framework
Client/Desktop applications / Other client software

Vendor Lenovo

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Improper access control

EUVDB-ID: #VU8857

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-3758

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target device.

The weakness exists due to improper access controls on several Android components in the LSF application. A remote attacker can gain unauthorized access to the device and execute arbitrary code with elevated privileges.

Mitigation

Update to version 4.8.0.2403.

Vulnerable software versions

Lenovo Service Framework: All versions

CPE2.3 External links

http://support.lenovo.com/ua/en/product_security/len-15374


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) Man-in-the-middle attack

EUVDB-ID: #VU8858

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-3759

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: No

Description

The vulnerability allows a remote attacker to conduct MITM-attack.

The weakness exists due to the LSF application accepts some responses from the server without proper validation. A remote attacker can use man-in-the-middle techniques and possibly execute arbitrary code on the target device.

Mitigation

Update to version 4.8.0.2403.

Vulnerable software versions

Lenovo Service Framework: All versions

CPE2.3 External links

http://support.lenovo.com/ua/en/product_security/len-15374


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) Man-in-the-middle attack

EUVDB-ID: #VU8859

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-3760

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: No

Description

The vulnerability allows a remote attacker to conduct MITM-attack.

The weakness exists due to the LSF application uses a set of nonsecure credentials when performing integrity verification of downloaded applications and/or data. A remote attacker can use man-in-the-middle techniques and possibly execute arbitrary code on the target device.

Mitigation

Update to version 4.8.0.2403.

Vulnerable software versions

Lenovo Service Framework: All versions

CPE2.3 External links

http://support.lenovo.com/ua/en/product_security/len-15374


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) Command injection

EUVDB-ID: #VU8860

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-3761

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target device.

The weakness exists due to Lenovo Service Framework application executes some system commands without proper sanitization of external input. A remote attacker can inject commands and execute arbitrary code with elevated privileges.

Mitigation

Update to version 4.8.0.2403.

Vulnerable software versions

Lenovo Service Framework: All versions

CPE2.3 External links

http://support.lenovo.com/ua/en/product_security/len-15374


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.



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