CVE-2017-17136 Explained : Impact and Mitigation

Huawei devices are vulnerable to a heap overflow issue due to insufficient verification, potentially leading to a denial of service attack.

Understanding CVE-2017-17136

This CVE identifies a critical vulnerability in various Huawei products that could be exploited by an authenticated local attacker.

What is CVE-2017-17136?

The vulnerability stems from a heap overflow in the PEM module of multiple Huawei devices, allowing an attacker to crash the system using a malicious certificate.

The Impact of CVE-2017-17136

The vulnerability could be exploited by an attacker to cause a denial of service on the affected Huawei devices.

Technical Details of CVE-2017-17136

This section delves into the specifics of the vulnerability.

Vulnerability Description

The heap overflow vulnerability in Huawei devices results from inadequate verification processes, enabling an attacker to disrupt system operations.

Affected Systems and Versions

The following Huawei products and versions are impacted by this vulnerability:

DP300 V500R002C00
IPS Module V500R001C00, V500R001C30
NGFW Module V500R001C00, V500R002C00
NIP6300 V500R001C00, V500R001C30
NIP6600 V500R001C00, V500R001C30
RP200 V500R002C00, V600R006C00
S12700 V200R007C00, V200R007C01, V200R008C00, V200R009C00, V200R010C00
S1700 V200R006C10, V200R009C00, V200R010C00
S2700 V200R006C10, V200R007C00, V200R008C00, V200R009C00, V200R010C00
S5700 V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00
S6700 V200R008C00, V200R009C00, V200R010C00
S7700 V200R007C00, V200R008C00, V200R009C00, V200R010C00
S9700 V200R007C00, V200R007C01, V200R008C00, V200R009C00, V200R010C00
Secospace USG6300 V500R001C00, V500R001C30
Secospace USG6500 V500R001C00, V500R001C30
Secospace USG6600 V500R001C00, V500R001C30S
TE30 V100R001C02, V100R001C10, V500R002C00, V600R006C00
TE40 V500R002C00, V600R006C00
TE50 V500R002C00, V600R006C00
TE60 V100R001C01, V100R001C10, V500R002C00, V600R006C00
TP3106 V100R002C00, TP3206 V100R002C00, V100R002C10
USG9500 V500R001C00, V500R001C30
ViewPoint 9030 V100R011C02, V100R011C03

Exploitation Mechanism

The vulnerability can be exploited by an authenticated local attacker using a malicious certificate to trigger a denial of service on the affected Huawei devices.

Mitigation and Prevention

Protecting your systems from CVE-2017-17136 is crucial. Here are some steps to consider:

Immediate Steps to Take

Apply patches provided by Huawei promptly.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch all software and firmware on Huawei devices.
Conduct security training for staff to recognize and respond to potential threats.

Patching and Updates

Stay informed about security advisories from Huawei and apply patches as soon as they are released.