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CVE-2022-31087— Incorrect Default Permissions in ldap-account-manager

Quick assessment

Affected
LDAPAccountManager lam
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LDAP Account Manager是一个 Web 前端，用于管理存储在 LDAP 目录中的条目（例如用户、组、DHCP 设置）。 LDAP Account Manager (LAM) 8.0之前版本存在注入漏洞。攻击者利用该漏洞将 web-shell 写入/lam/tmp/目录，并在主机上获得代码执行权限。

AI Predicted 9.8 Difficulty: Easy EPSS 0.43% · P36

Possible ATT&CK Techniques 1 AI

T1505.003 · Web Shell
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I. Basic Information for CVE-2022-31087

Vulnerability Information
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Vulnerability Title
Incorrect Default Permissions in ldap-account-manager
Source: CVE Program / CVE List V5
Vulnerability Description
LDAP Account Manager (LAM) is a webfrontend for managing entries (e.g. users, groups, DHCP settings) stored in an LDAP directory. In versions prior to 8.0 the tmp directory, which is accessible by /lam/tmp/, allows interpretation of .php (and .php5/.php4/.phpt/etc) files. An attacker capable of writing files under www-data privileges can write a web-shell into this directory, and gain a Code Execution on the host. This issue has been fixed in version 8.0. Users unable to upgrade should disallow executing PHP scripts in (/var/lib/ldap-account-manager/)tmp directory.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
LDAP Account Manager 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LDAP Account Manager是一个 Web 前端，用于管理存储在 LDAP 目录中的条目（例如用户、组、DHCP 设置）。 LDAP Account Manager (LAM) 8.0之前版本存在注入漏洞。攻击者利用该漏洞将 web-shell 写入/lam/tmp/目录，并在主机上获得代码执行权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
LDAPAccountManager lam < 8.0 -

II. Public POCs for CVE-2022-31087

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III. Intelligence Information for CVE-2022-31087

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Patches & Fixes for CVE-2022-31087 (1)

Vendor Advisories for CVE-2022-31087 (2)

Same Patch Batch · LDAPAccountManager · 2022-06-27 · 5 CVEs total

CVE-2022-31084 Unauthenticated Remote Code Execution in ldap-account-manager
CVE-2022-31085 Missing Encryption of Sensitive Data in ldap-account-manager
CVE-2022-31086 Incorrect Regular Expressions in ldap-account-manager
CVE-2022-31088 Unauthenticated LDAP Injection in ldap-account-manager

IV. Related Vulnerabilities

Same product: lam
Same vendor: LDAPAccountManager
Same weakness: CWE-74

V. Comments for CVE-2022-31087

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