CVE-2017-17134 : Exploit Details and Defense Strategies
Learn about CVE-2017-17134 affecting Huawei products. Understand the DoS vulnerability in XML parser, its impact, affected versions, and mitigation steps.
Huawei Technologies Co., Ltd. XML parser in multiple products is vulnerable to a Denial of Service (DoS) attack due to insufficient XML file verification.
Understanding CVE-2017-17134
The vulnerability identified as CVE-2017-17134 affects various Huawei products, potentially allowing a local attacker to execute a DoS attack.
What is CVE-2017-17134?
The XML parser in Huawei DP300, RP200, TE30, TE40, TE50, and TE60 versions is susceptible to a DoS attack. An authenticated local attacker can exploit this vulnerability by crafting specific XML files that lead to null pointer access, resulting in DoS attacks.
The Impact of CVE-2017-17134
The vulnerability could be exploited by an authenticated local attacker to disrupt the affected systems, leading to service unavailability and potential system crashes.
Technical Details of CVE-2017-17134
The following technical details outline the specifics of CVE-2017-17134:
Vulnerability Description
- Vulnerability Type: Denial of Service (DoS)
- Affected Component: XML parser in Huawei products
Affected Systems and Versions
- Huawei DP300 V500R002C00
- Huawei RP200 V500R002C00SPC200
- Huawei V600R006C00
- Huawei TE30 V100R001C10
- Huawei V500R002C00
- Huawei TE40 V500R002C00
- Huawei TE50 V500R002C00
- Huawei TE60 V100R001C10
Exploitation Mechanism
- An authenticated local attacker can create specific XML files to exploit the vulnerability, causing null pointer access and subsequent DoS attacks.
Mitigation and Prevention
To address CVE-2017-17134, consider the following mitigation strategies:
Immediate Steps to Take
- Apply vendor-provided patches and updates promptly.
- Monitor network traffic for signs of exploitation.
- Restrict access to vulnerable systems.
Long-Term Security Practices
- Regularly update and patch all software and firmware.
- Conduct security training for personnel to recognize and respond to potential threats.
Patching and Updates
- Huawei may release patches to address the vulnerability; ensure timely implementation of these updates.