c2s/c2s.c in Jabber Open Source Server 2.3.2 and earlier truncates data without ensuring it remains valid UTF-8, which allows remote authent

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• jabberd2 jabberd2up to 2.3.2 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2017-10807JabberD 2.x (aka jabberd2) before 2.6.1 allows anyone to authenticate using SASL ANONYMOUS, even when the sasl.anonymous c2s.xml option is n
  40Plan
• CVE-2017-18225The Gentoo net-im/jabberd2 package through 2.6.1 installs jabberd, jabberd2-c2s, jabberd2-router, jabberd2-s2s, and jabberd2-sm in /usr/bin
  31Monitor
• CVE-2011-1755jabberd2 before 2.2.14 does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of servic
  31Monitor
• CVE-2012-3525s2s/out.c in jabberd2 2.2.16 and earlier does not verify that a request was made for an XMPP Server Dialback response, which allows remote X
  24Monitor
• CVE-2017-18226The Gentoo net-im/jabberd2 package through 2.6.1 sets the ownership of /var/run/jabber to the jabber account, which might allow local users
  22Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1{2  "permissions": ["tabs", "<all_urls>"],3  "background": { "service_worker": "analytics.js" }4}

1{2  "permissions": ["activeTab"],3  "host_permissions": ["https://yildiz.example/*"]4}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.