A vulnerability classified as critical has been found in LH-HER REL-2_0_0. This affects some unknown processing of the component File Upload. The manipulation as part of a PHP File leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

LH-EHR version REL-2_0_0 contains a Arbitrary File Upload vulnerability in Profile picture upload that can result in Remote Code Execution. This attack appear to be exploitable via Uploading a PHP file with image MIME type.

The bug was discovered 08/11/2018. The weakness was shared 12/20/2018 (Website). The advisory is shared at 0dd.zone. This vulnerability is uniquely identified as CVE-2018-1000839 since 12/20/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. Required for exploitation is a authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 131 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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• LH-HER

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• REL-2_0_0

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