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cnvd-2022-03222
Vulnerability from cnvd
Title: Apache HTTP Server路径遍历漏洞
Description:
Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。
Apache HTTP Server 2.4.49版本存在路径遍历漏洞，该漏洞源于ap_normalize_path函数引入后未做严格的校验，攻击者可利用该漏洞获取到敏感信息或控制目标服务器。
Severity: 中
Patch Name: Apache HTTP Server路径遍历漏洞的补丁
Patch Description:
Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。
Apache HTTP Server 2.4.49版本存在路径遍历漏洞，该漏洞源于ap_normalize_path函数引入后未做严格的校验，攻击者可利用该漏洞获取到敏感信息或控制目标服务器。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description:
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://httpd.apache.org/security/vulnerabilities_24.html
Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-41773
Impacted products
| Name | Apache HTTP Server 2.4.49 |
|---|
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CVE-2021-41773 (GCVE-0-2021-41773)
Vulnerability from cvelistv5
Published
2021-10-05 08:40
Modified
2025-07-30 01:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary
A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions. The fix in Apache HTTP Server 2.4.50 was found to be incomplete, see CVE-2021-42013.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Version: Apache HTTP Server 2.4 2.4.49 |
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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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