All the vulnerabilites related to ZyXEL - NSA221
var-202003-1707
Vulnerability from variot
Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device. ZyXEL NAS devices achieve authentication by using the weblogin.cgi CGI executable. This program fails to properly sanitize the username parameter that is passed to it. If the username parameter contains certain characters, it can allow command injection with the privileges of the web server that runs on the ZyXEL device. Although the web server does not run as the root user, ZyXEL devices include a setuid utility that can be leveraged to run any command with root privileges. As such, it should be assumed that exploitation of this vulnerability can lead to remote code execution with root privileges. By sending a specially-crafted HTTP POST or GET request to a vulnerable ZyXEL device, a remote, unauthenticated attacker may be able to execute arbitrary code on the device. This may happen by directly connecting to a device if it is directly exposed to an attacker. However, there are ways to trigger such crafted requests even if an attacker does not have direct connectivity to a vulnerable devices. For example, simply visiting a website can result in the compromise of any ZyXEL device that is reachable from the client system. Affected products include: NAS326 before firmware V5.21(AAZF.7)C0 NAS520 before firmware V5.21(AASZ.3)C0 NAS540 before firmware V5.21(AATB.4)C0 NAS542 before firmware V5.21(ABAG.4)C0 ZyXEL has made firmware updates available for NAS326, NAS520, NAS540, and NAS542 devices. Affected models that are end-of-support: NSA210, NSA220, NSA220+, NSA221, NSA310, NSA310S, NSA320, NSA320S, NSA325 and NSA325v2. plural ZyXEL Included in the product weblogin.cgi Is vulnerable to the execution of arbitrary commands. OS Command injection (CWE-78) - CVE-2020-9054 ZyXEL In multiple products offered by CGI Executable file weblogin.cgi Authentication is done using. About this vulnerability ZyXEL Made NAS Exploit codes for products are available on the Internet. Zyxel Technology is a provider of network broadband systems and solutions for internationally renowned brands. main
Products include DSL central office and terminal equipment, router equipment, network security equipment, wireless local area communication equipment,
It also provides full-range broadband network application integration solutions for Chinese enterprises, such as network telephones and Ethernet switches.
Multiple ZyXEL network-attached storage (NAS) devices have security holes
Show details on source website{
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"data": "Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device. ZyXEL NAS devices achieve authentication by using the weblogin.cgi CGI executable. This program fails to properly sanitize the username parameter that is passed to it. If the username parameter contains certain characters, it can allow command injection with the privileges of the web server that runs on the ZyXEL device. Although the web server does not run as the root user, ZyXEL devices include a setuid utility that can be leveraged to run any command with root privileges. As such, it should be assumed that exploitation of this vulnerability can lead to remote code execution with root privileges. By sending a specially-crafted HTTP POST or GET request to a vulnerable ZyXEL device, a remote, unauthenticated attacker may be able to execute arbitrary code on the device. This may happen by directly connecting to a device if it is directly exposed to an attacker. However, there are ways to trigger such crafted requests even if an attacker does not have direct connectivity to a vulnerable devices. For example, simply visiting a website can result in the compromise of any ZyXEL device that is reachable from the client system. Affected products include: NAS326 before firmware V5.21(AAZF.7)C0 NAS520 before firmware V5.21(AASZ.3)C0 NAS540 before firmware V5.21(AATB.4)C0 NAS542 before firmware V5.21(ABAG.4)C0 ZyXEL has made firmware updates available for NAS326, NAS520, NAS540, and NAS542 devices. Affected models that are end-of-support: NSA210, NSA220, NSA220+, NSA221, NSA310, NSA310S, NSA320, NSA320S, NSA325 and NSA325v2. plural ZyXEL Included in the product weblogin.cgi Is vulnerable to the execution of arbitrary commands. OS Command injection (CWE-78) - CVE-2020-9054 ZyXEL In multiple products offered by CGI Executable file weblogin.cgi Authentication is done using. About this vulnerability ZyXEL Made NAS Exploit codes for products are available on the Internet. Zyxel Technology is a provider of network broadband systems and solutions for internationally renowned brands. main\r\n\r\nProducts include DSL central office and terminal equipment, router equipment, network security equipment, wireless local area communication equipment,\r\n\r\nIt also provides full-range broadband network application integration solutions for Chinese enterprises, such as network telephones and Ethernet switches. \n\r\n\r\nMultiple ZyXEL network-attached storage (NAS) devices have security holes",
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cve-2020-9054
Vulnerability from cvelistv5
Published
2020-03-04 19:30
Modified
2024-09-16 17:14
Severity ?
EPSS score ?
Summary
Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device. ZyXEL NAS devices achieve authentication by using the weblogin.cgi CGI executable. This program fails to properly sanitize the username parameter that is passed to it. If the username parameter contains certain characters, it can allow command injection with the privileges of the web server that runs on the ZyXEL device. Although the web server does not run as the root user, ZyXEL devices include a setuid utility that can be leveraged to run any command with root privileges. As such, it should be assumed that exploitation of this vulnerability can lead to remote code execution with root privileges. By sending a specially-crafted HTTP POST or GET request to a vulnerable ZyXEL device, a remote, unauthenticated attacker may be able to execute arbitrary code on the device. This may happen by directly connecting to a device if it is directly exposed to an attacker. However, there are ways to trigger such crafted requests even if an attacker does not have direct connectivity to a vulnerable devices. For example, simply visiting a website can result in the compromise of any ZyXEL device that is reachable from the client system. Affected products include: NAS326 before firmware V5.21(AAZF.7)C0 NAS520 before firmware V5.21(AASZ.3)C0 NAS540 before firmware V5.21(AATB.4)C0 NAS542 before firmware V5.21(ABAG.4)C0 ZyXEL has made firmware updates available for NAS326, NAS520, NAS540, and NAS542 devices. Affected models that are end-of-support: NSA210, NSA220, NSA220+, NSA221, NSA310, NSA310S, NSA320, NSA320S, NSA325 and NSA325v2
References
| ▼ | URL | Tags |
|---|---|---|
| https://cwe.mitre.org/data/definitions/78.html | x_refsource_MISC | |
| https://www.zyxel.com/support/remote-code-execution-vulnerability-of-NAS-products.shtml | x_refsource_CONFIRM | |
| https://kb.cert.org/vuls/id/498544/ | third-party-advisory, x_refsource_CERT-VN | |
| https://kb.cert.org/artifacts/cve-2020-9054.html | x_refsource_MISC | |
| https://krebsonsecurity.com/2020/02/zyxel-fixes-0day-in-network-storage-devices/ | x_refsource_MISC |
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | ZyXEL | NAS326 |
Version: V5.21(AAZF.7)C0 < |
||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||
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"ASSIGNER": "cert@cert.org",
"DATE_PUBLIC": "2020-02-20T00:00:00.000Z",
"ID": "CVE-2020-9054",
"STATE": "PUBLIC",
"TITLE": "ZyXEL NAS products running firmware version 5.21 and earlier are vulnerable to pre-authentication command injection in weblogin.cgi"
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"affects": {
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"product": {
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{
"product_name": "NAS326",
"version": {
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"version_affected": "\u003c=",
"version_name": "V5.21(AAZF.7)C0",
"version_value": "V5.21(AAZF.7)C0"
}
]
}
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"product_name": "NAS520",
"version": {
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"version_affected": "\u003c=",
"version_name": "V5.21(AASZ.3)C0",
"version_value": "V5.21(AASZ.3)C0"
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]
}
},
{
"product_name": "NAS540",
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"version_name": "V5.21(AATB.4)C0",
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"product_name": "NSA221",
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"product_name": "NSA310",
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"version_name": "V4.75(AALH.2)C0",
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"product_name": "NSA325",
"version": {
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"version_affected": "\u003c=",
"version_name": "V4.81(AAAJ.1)C0",
"version_value": "V4.81(AAAJ.1)C0"
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}
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"value": "Thanks to Alex Holden of Hold Security for finding and reporting this vulnerability."
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"value": "Multiple ZyXEL network-attached storage (NAS) devices running firmware version 5.21 contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device. ZyXEL NAS devices achieve authentication by using the weblogin.cgi CGI executable. This program fails to properly sanitize the username parameter that is passed to it. If the username parameter contains certain characters, it can allow command injection with the privileges of the web server that runs on the ZyXEL device. Although the web server does not run as the root user, ZyXEL devices include a setuid utility that can be leveraged to run any command with root privileges. As such, it should be assumed that exploitation of this vulnerability can lead to remote code execution with root privileges. By sending a specially-crafted HTTP POST or GET request to a vulnerable ZyXEL device, a remote, unauthenticated attacker may be able to execute arbitrary code on the device. This may happen by directly connecting to a device if it is directly exposed to an attacker. However, there are ways to trigger such crafted requests even if an attacker does not have direct connectivity to a vulnerable devices. For example, simply visiting a website can result in the compromise of any ZyXEL device that is reachable from the client system. Affected products include: NAS326 before firmware V5.21(AAZF.7)C0 NAS520 before firmware V5.21(AASZ.3)C0 NAS540 before firmware V5.21(AATB.4)C0 NAS542 before firmware V5.21(ABAG.4)C0 ZyXEL has made firmware updates available for NAS326, NAS520, NAS540, and NAS542 devices. Affected models that are end-of-support: NSA210, NSA220, NSA220+, NSA221, NSA310, NSA310S, NSA320, NSA320S, NSA325 and NSA325v2"
}
]
},
"exploit": [
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"lang": "en",
"value": "https://kb.cert.org/artifacts/cve-2020-9054.html"
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"lang": "eng",
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"reference_data": [
{
"name": "https://cwe.mitre.org/data/definitions/78.html",
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"url": "https://cwe.mitre.org/data/definitions/78.html"
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{
"name": "https://www.zyxel.com/support/remote-code-execution-vulnerability-of-NAS-products.shtml",
"refsource": "CONFIRM",
"url": "https://www.zyxel.com/support/remote-code-execution-vulnerability-of-NAS-products.shtml"
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{
"name": "VU#498544",
"refsource": "CERT-VN",
"url": "https://kb.cert.org/vuls/id/498544/"
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{
"name": "https://kb.cert.org/artifacts/cve-2020-9054.html",
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"url": "https://kb.cert.org/artifacts/cve-2020-9054.html"
},
{
"name": "https://krebsonsecurity.com/2020/02/zyxel-fixes-0day-in-network-storage-devices/",
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"url": "https://krebsonsecurity.com/2020/02/zyxel-fixes-0day-in-network-storage-devices/"
}
]
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"solution": [
{
"lang": "en",
"value": "ZyXEL has made firmware updates available for NAS326, NAS520, NAS540, NAS542, ATP100, ATP200, ATP500, ATP800, USG20-VPN, USG20W-VPN, USG40, USG40W, USG60, USG60W, USG110, USG210, USG310, USG1100, USG1900, USG2200, VPN50, VPN100, VPN300, VPN1000, ZyWALL110, ZyWALL310, and ZyWALL1100 devices."
}
],
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"discovery": "UNKNOWN"
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"dateReserved": "2020-02-18T00:00:00",
"dateUpdated": "2024-09-16T17:14:38.648Z",
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