Huawei G9 Lite/Honor 5A/Honor 6X/Honor 8 Factory Reset Protection 7pk security
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.7 | $0-$5k | 0.00 |
A vulnerability was found in Huawei G9 Lite, Honor 5A, Honor 6X and Honor 8 (unknown version) and classified as critical. This issue affects an unknown code block of the component Factory Reset Protection. The manipulation with an unknown input leads to a 7pk security vulnerability. Using CWE to declare the problem leads to CWE-254. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
Huawei smart phones G9 Lite, Honor 5A, Honor 6X, Honor 8 with the versions before VNS-L53C605B120CUSTC605D103, the versions before CAM-L03C605B143CUSTC605D008, the versions before CAM-L21C10B145, the versions before CAM-L21C185B156, the versions before CAM-L21C223B133, the versions before CAM-L21C432B210, the versions before CAM-L21C464B170, the versions before CAM-L21C636B245, the versions before Berlin-L21C10B372, the versions before Berlin-L21C185B363, the versions before Berlin-L21C464B137, the versions before Berlin-L23C605B161, the versions before FRD-L09C10B387, the versions before FRD-L09C185B387, the versions before FRD-L09C432B398, the versions before FRD-L09C636B387, the versions before FRD-L19C10B387, the versions before FRD-L19C432B399, the versions before FRD-L19C636B387 have a Factory Reset Protection (FRP) bypass security vulnerability. When re-configuring the mobile phone using the factory reset protection (FRP) function, an attacker can disable the boot wizard by enable the talkback function. As a result, the FRP function is bypassed.
The bug was discovered 09/05/2018. The weakness was shared 09/12/2018 (Website). The advisory is shared at huawei.com. The identification of this vulnerability is CVE-2018-7939 since 03/08/2018. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/16/2023). MITRE ATT&CK project uses the attack technique T1211 for this issue.
The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $5k-$25k.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.7VulDB Meta Temp Score: 5.7
VulDB Base Score: 6.8
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 4.6
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: 7pk securityCWE: CWE-254
ATT&CK: T1211
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
03/08/2018 🔍09/05/2018 🔍
09/12/2018 🔍
09/12/2018 🔍
09/13/2018 🔍
05/16/2023 🔍
Sources
Vendor: huawei.comAdvisory: sa-20180905-01
Status: Not defined
Confirmation: 🔍
CVE: CVE-2018-7939 (🔍)
Entry
Created: 09/13/2018 08:39Updated: 05/16/2023 09:26
Changes: 09/13/2018 08:39 (55), 03/23/2020 13:54 (2), 05/16/2023 09:26 (3)
Complete: 🔍
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