CVE-2015-7336 - Improper Verification of Cryptographic Signature

Severity

75%

Complexity

39%

Confidentiality

60%

MITRE is populating this ID because it was assigned prior to Lenovo becoming a CNA. A vulnerability was reported (fixed and publicly disclosed in 2015) in Lenovo System Update version 5.07.0008 and prior that could allow the signature check of an update to be bypassed.

MITRE is populating this ID because it was assigned prior to Lenovo becoming a CNA. A vulnerability was reported (fixed and publicly disclosed in 2015) in Lenovo System Update version 5.07.0008 and prior that could allow the signature check of an update to be bypassed.

CVSS 3.1 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N).

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N).

Demo Examples

Improper Verification of Cryptographic Signature

CWE-347

In the following code, a JarFile object is created from a downloaded file.


               
JarFile jf = new JarFile(f);

The JAR file that was potentially downloaded from an untrusted source is created without verifying the signature (if present). An alternate constructor that accepts a boolean verify parameter should be used instead.

Overview

First reported 4 years ago

2020-03-27 15:15:00

Last updated 4 years ago

2020-04-01 18:51:00

Affected Software

Lenovo System Update

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