ZyXEL UTM/VPN up to 4.55 HTTP Packet fbwifi_continue.cgi buffer overflow

Summaryinfo

A vulnerability identified as critical has been detected in ZyXEL UTM and VPN up to 4.55. This impacts an unknown function of the file fbwifi_continue.cgi of the component HTTP Packet Handler. Performing a manipulation results in buffer overflow. This vulnerability is known as CVE-2020-25014. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in ZyXEL UTM and VPN up to 4.55 (Network Encryption Software). This affects some unknown functionality of the file fbwifi_continue.cgi of the component HTTP Packet Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 11/27/2020. The advisory is shared at businessforum.zyxel.com. This vulnerability is uniquely identified as CVE-2020-25014. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/12/2024).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Network Encryption Software

Vendor

• ZyXEL

Name

• UTM
• VPN

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8
• 4.9
• 4.10
• 4.11
• 4.12
• 4.13
• 4.14
• 4.15
• 4.16
• 4.17
• 4.18
• 4.19
• 4.20
• 4.21
• 4.22
• 4.23
• 4.24
• 4.25
• 4.26
• 4.27
• 4.28
• 4.29
• 4.30
• 4.31
• 4.32
• 4.33
• 4.34
• 4.35
• 4.36
• 4.37
• 4.38
• 4.39
• 4.40
• 4.41
• 4.42
• 4.43
• 4.44
• 4.45
• 4.46
• 4.47
• 4.48
• 4.49
• 4.50
• 4.51
• 4.52
• 4.53
• 4.54
• 4.55

License

• commercial

Website

• Vendor: https://www.zyxel.com/

CPE 2.3info

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CPE 2.2info

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