cnvd - cnvd-2020-49272

cnvd-2020-49272

Vulnerability from cnvd

Title: Palo Alto Networks PAN-OS输入验证错误漏洞（CNVD-2020-49272）

Description:

Palo Alto Networks PAN-OS是美国Palo Alto Networks公司的一套为其防火墙设备开发的操作系统。

Palo Alto Networks PAN-OS中存在输入验证错误漏洞。该漏洞源于网络系统或产品未对输入的数据进行正确的验证。攻击者可利用该漏洞造成拒绝服务。

Severity: 低

Formal description:

目前厂商暂未发布升级补丁解决此安全问题，但提供了临时修复措施，详情请参考链接： https://security.paloaltonetworks.com/CVE-2020-2035

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-2035

Impacted products

Name
['Palo Alto Networks PAN-OS 10.0.', 'Palo Alto Networks PAN-OS 9.1.', 'Palo Alto Networks PAN-OS 9.0.', 'Palo Alto Networks PAN-OS 8.1.']

Show details on source website

JSON

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-2035",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-2035"
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-49272",
  "openTime": "2020-08-28",
  "products": {
    "product": [
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      "Palo Alto Networks PAN-OS 9.1.*",
      "Palo Alto Networks PAN-OS 9.0.*",
      "Palo Alto Networks PAN-OS 8.1.*"
    ]
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  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-2035",
  "serverity": "\u4f4e",
  "submitTime": "2020-08-14",
  "title": "Palo Alto Networks PAN-OS\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2020-49272\uff09"
}

CVE-2020-2035 (GCVE-0-2020-2035)

Vulnerability from cvelistv5

Published

2020-08-12 17:05

Modified

2024-09-17 04:10

Severity ?

3.0 (Low) - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:N

CWE

CWE-20 - Improper Input Validation

Summary

When SSL/TLS Forward Proxy Decryption mode has been configured to decrypt the web transactions, the PAN-OS URL filtering feature inspects the HTTP Host and URL path headers for policy enforcement on the decrypted HTTPS web transactions but does not consider Server Name Indication (SNI) field within the TLS Client Hello handshake. This allows a compromised host in a protected network to evade any security policy that uses URL filtering on a firewall configured with SSL Decryption in the Forward Proxy mode. A malicious actor can then use this technique to evade detection of communication on the TLS handshake phase between a compromised host and a remote malicious server. This technique does not increase the risk of a host being compromised in the network. It does not impact the confidentiality or availability of a firewall. This is considered to have a low impact on the integrity of the firewall because the firewall fails to enforce a policy on certain traffic that should have been blocked. This issue does not impact the URL filtering policy enforcement on clear text or encrypted web transactions. This technique can be used only after a malicious actor has compromised a host in the protected network and the TLS/SSL Decryption feature is enabled for the traffic that the attacker controls. Palo Alto Networks is not aware of any malware that uses this technique to exfiltrate data. This issue is applicable to all current versions of PAN-OS. This issue does not impact Panorama or WF-500 appliances.

References

▼	URL	Tags
	https://security.paloaltonetworks.com/CVE-2020-2035	x_refsource_MISC
	https://www.mnemonic.no/blog/introducing-snicat/	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Palo Alto Networks	PAN-OS	Version: 8.1.* Version: 9.0.* Version: 9.1.* Version: 10.0.* Version: 10.1.*

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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