CVE-2017-17138 : Security Advisory and Response
Learn about CVE-2017-17138, a DoS vulnerability in various Huawei products. Find out how an attacker can exploit this flaw to trigger a denial of service attack and the necessary mitigation steps.
A denial-of-service (DoS) vulnerability in the PEM module of various Huawei products allows an authenticated local attacker to trigger a DoS attack by exploiting a malicious certificate.
Understanding CVE-2017-17138
This CVE entry describes a critical vulnerability affecting multiple Huawei products, potentially leading to service disruption.
What is CVE-2017-17138?
The CVE-2017-17138 vulnerability is a DoS issue in the PEM module of Huawei products, enabling an attacker to cause a denial of service through a specific attack vector.
The Impact of CVE-2017-17138
The vulnerability poses a significant risk as it allows an authenticated local attacker to disrupt services by exploiting a flaw in the verification process, leading to a DoS condition.
Technical Details of CVE-2017-17138
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The vulnerability exists in the PEM module of various Huawei products due to insufficient verification, enabling an attacker to exploit a malicious certificate and trigger a DoS attack.
Affected Systems and Versions
- Huawei 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 is exploited by an authenticated local attacker who leverages a malicious certificate to trigger a DoS condition within the affected Huawei products.
Mitigation and Prevention
Protecting systems from CVE-2017-17138 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Apply security patches provided by Huawei promptly.
- Implement network segmentation to limit the impact of potential attacks.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Conduct regular security assessments and audits to identify vulnerabilities.
- Train employees on cybersecurity best practices to prevent social engineering attacks.
- Keep systems and software up to date with the latest security patches.
- Implement robust access control measures to restrict unauthorized access.
Patching and Updates
- Huawei may release patches addressing the CVE-2017-17138 vulnerability. Stay informed about patch releases and apply them as soon as they are available.