Huawei P8 Lite/Mate 7/Mate S/P8/Honor 6/Honor 7/SHOTX/G8 File Decompression path traversal

Summaryinfo

A vulnerability was found in Huawei P8 Lite, Mate 7, Mate S, P8, Honor 6, Honor 7, SHOTX and G8. It has been classified as critical. Impacted is an unknown function of the component File Decompression Handler. This manipulation causes path traversal. This vulnerability is tracked as CVE-2017-2693. The attack is restricted to local execution. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Huawei P8 Lite, Mate 7, Mate S, P8, Honor 6, Honor 7, SHOTX and G8 (Smartphone Operating System). It has been declared as critical. Affected by this vulnerability is an unknown code block of the component File Decompression Handler. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

ALE-L02C635B140 and earlier versions,ALE-L02C636B140 and earlier versions,ALE-L21C10B150 and earlier versions,ALE-L21C185B200 and earlier versions,ALE-L21C432B214 and earlier versions,ALE-L21C464B150 and earlier versions,ALE-L21C636B200 and earlier versions,ALE-L23C605B190 and earlier versions,ALE-TL00C01B250 and earlier versions,ALE-UL00C00B250 and earlier versions,MT7-L09C605B325 and earlier versions,MT7-L09C900B339 and earlier versions,MT7-TL10C900B339 and earlier versions,CRR-CL00C92B172 and earlier versions,CRR-L09C432B180 and earlier versions,CRR-TL00C01B172 and earlier versions,CRR-UL00C00B172 and earlier versions,CRR-UL20C432B171 and earlier versions,GRA-CL00C92B230 and earlier versions,GRA-L09C432B222 and earlier versions,GRA-TL00C01B230SP01 and earlier versions,GRA-UL00C00B230 and earlier versions,GRA-UL00C10B201 and earlier versions,GRA-UL00C432B220 and earlier versions,H60-L04C10B523 and earlier versions,H60-L04C185B523 and earlier versions,H60-L04C636B527 and earlier versions,H60-L04C900B530 and earlier versions,PLK-AL10C00B220 and earlier versions,PLK-AL10C92B220 and earlier versions,PLK-CL00C92B220 and earlier versions,PLK-L01C10B140 and earlier versions,PLK-L01C185B130 and earlier versions,PLK-L01C432B187 and earlier versions,PLK-L01C432B190 and earlier versions,PLK-L01C432B190 and earlier versions,PLK-L01C636B130 and earlier versions,PLK-TL00C01B220 and earlier versions,PLK-TL01HC01B220 and earlier versions,PLK-UL00C17B220 and earlier versions,ATH-AL00C00B210 and earlier versions,ATH-AL00C92B200 and earlier versions,ATH-CL00C92B210 and earlier versions,ATH-TL00C01B210 and earlier versions,ATH-TL00HC01B210 and earlier versions,ATH-UL00C00B210 and earlier versions,RIO-AL00C00B220 and earlier versions,RIO-CL00C92B220 and earlier versions,RIO-TL00C01B220 and earlier versions,RIO-UL00C00B220 and earlier versions have a path traversal vulnerability. An attacker mayexploit it to decompress malicious files into a target path.

The bug was discovered 02/08/2017. The weakness was disclosed 11/22/2017 with Tencent (Website). It is possible to read the advisory at huawei.com. This vulnerability is known as CVE-2017-2693 since 12/01/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 287 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 95919†). The entry VDB-109806 is pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Smartphone Operating System

Vendor

• Huawei

Name

• G8
• Honor 6
• Honor 7
• Mate 7
• Mate S
• P8
• P8 Lite
• SHOTX

License

• commercial

Website

• Vendor: https://www.huawei.com/

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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