SHAREit up to 4.0.6.177 Body Length Packet resource consumption

Summaryinfo

A vulnerability classified as critical has been found in SHAREit up to 4.0.6.177. Affected by this issue is some unknown functionality of the component Body Length Handler. Performing a manipulation as part of Packet results in resource consumption. This vulnerability is cataloged as CVE-2019-14941. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in SHAREit up to 4.0.6.177. It has been classified as critical. This affects some unknown processing of the component Body Length Handler. The manipulation as part of a Packet leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

SHAREit through 4.0.6.177 does not check the body length from the received packet header (which is used to allocate memory for the next set of data). This could lead to a system denial of service due to uncontrolled memory allocation.

The weakness was shared 04/27/2020. This vulnerability is uniquely identified as CVE-2019-14941 since 08/11/2019. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

A public exploit has been developed in Python and been published even before and not after the advisory. The exploit is shared for download at github.com. It is declared as functional. The vulnerability was handled as a non-public zero-day exploit for at least 2 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.

The entry VDB-154420 is related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• SHAREit

Version

• 4.0.6.177

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #166: ShareIt 4.0.6.177 (Windows) - Uncontrolled Memory Allocation on UnsecureChannel (by nathunandwani)

Duplicate

• Submit #XXX: Xxxxxxx X.x.x.xxx (xxxxxxx) - Xxxxxxxxxxxx Xxxxxx Xxxxxxxxxx Xx Xxxxxxxxxxxxxxx (by nathunandwani)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion