Coverage › CVE-2023-7024

CVE-2023-7024 Mapped Sigma

Google Chromium WebRTC Heap Buffer Overflow Vulnerability

Vendor / product

Google — Chromium WebRTC

Description (CISA)

Google Chromium WebRTC, an open-source project providing web browsers with real-time communication, contains a heap buffer overflow vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could impact web browsers using WebRTC, including but not limited to Google Chrome.

Added to KEV

2024-01-02

Due date

2024-01-23

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known ransomware use

Unknown

CWE

CWE-787

CISA notes

This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://chromereleases.googleblog.com/2023/12/stable-channel-update-for-desktop_20.html
https://nvd.nist.gov/vuln/detail/CVE-2023-7024

Elsewhere

cve.org · NVD · CISA KEV · JSON

ATT&CK techniques · CTID Mappings Explorer, ATT&CK 16.1, KEV snapshot 2025-07-28

2 mapping objects across 2 techniques. exploitation technique states how the vulnerability is exploited; primary and secondary impact state what exploitation achieves. They are different claims and are labelled as such.

Detection chain · ATT&CK Enterprise v19.2 detection strategies, analytics, log sources

T1189 Drive-by Compromise exploitation technique

• DET0176 Drive-by Compromise — Behavior-based, Multi-platform Detection Strategy (T1189)
  AN0498 Windows

  Correlated evidence of anomalous browser/network behavior (suspicious external resource fetches and script injection patterns) followed by atypical child processes, ephemeral execution contexts, memory modification or process injection, and unexpected file drops. Defender sees network requests to previously unseen/suspicious domains or resources + browser process spawning unusual children or loading unsigned modules + file writes or registry changes shortly after those requests.

  WinEventLog:Security EventCode=4624, 4648 → DC0067 Logon Session Creation

  WinEventLog:Security EventCode=4688 → DC0032 Process Creation

  WinEventLog:Sysmon EventCode=3, 22 → DC0082 Network Connection Creation

  WinEventLog:Application Browser or plugin/application logs showing script errors, plugin enumerations, or unusual extension load events → DC0038 Application Log Content

  etw:Microsoft-Windows-Kernel-Process Memory Modification / Unmapped module load or suspicious RWX allocations in the process space of a browser process → DC0020 Process Modification

  WinEventLog:Sysmon EventCode=11 → DC0039 File Creation

  NSM:Flow http.request: HTTP requests and responses for specific script resources, unexpected content-types (application/octet-stream for script URLs), suspicious referrers, or obfuscated javascript resources → DC0085 Network Traffic Content

  Tunable: TimeWindow KnownGoodDomainsList PayloadEntropyThreshold UserContext
  AN0499 Linux

  Correlated evidence of browser or webview fetches to uncommon domains or mutated JS resources (proxy/NGFW logs + Zeek/HTTP logs) followed by unexpected interpreters or script engines executing (python, ruby, sh) spawned from browser processes or user sessions, rapid on-disk staging in /tmp, and outbound connections that deviate from baseline. Defender sees: uncommon resource fetch → short-lived child process executions from user browser context → file writes in temp directories → anomalous outbound C2-like connections.

  auditd:SYSCALL execve: execve calls where a browser/webview process is parent and child is interpreter (python, sh, ruby) or downloader (curl, wget) → DC0032 Process Creation

  linux:syslog Application or browser logs (webview errors, plugin enumerations) indicating suspicious script evaluation or plugin loads → DC0038 Application Log Content

  NSM:Flow http::response: HTTP responses with suspicious content-type for scripts, long obfuscated javascript bodies, or redirects to exploit kit domains → DC0085 Network Traffic Content

  linux:Sysmon New files in /tmp, /var/tmp, $HOME/.cache, executed within TimeWindow after browser HTTP fetch → DC0039 File Creation

  NSM:Connections Outbound connections from newly spawned child processes or from the browser to uncommon endpoints or on anomalous ports → DC0082 Network Connection Creation

  Tunable: TempPathPatterns UserShellWhitelist DomainRarityThreshold
  AN0500 macOS

  Correlated evidence where Safari/Chrome/WebKit-based processes issue network requests for uncommon or obfuscated JS resources followed by spawning of script interpreters, launchd or ad-hoc binaries, unusual child processes, or dynamic library loads into browser processes. Defender sees: proxy/HTTP logs with suspicious resource content + unifiedlogs/ASL showing browser/plugin crashes or extension loads + process events indicating child process creation and file writes to /var/folders or /tmp shortly after the fetch.

  macos:unifiedlog Logs from unifiedlogging that show browser crashes, plugin enumerations, extension installs or errors around the same time as suspicious network fetches → DC0038 Application Log Content

  macos:unifiedlog process_create: Process creation where parent is Safari/Google Chrome and child is script interpreter or signed-but-unusual helper binary → DC0032 Process Creation

  macos:unifiedlog New files written to /var/folders, /tmp, ~/Library/Caches, or ~/Downloads by browser context or its children → DC0039 File Creation

  NSM:Flow HTTP/HTTPS requests for script resources flagged by content inspection (excessive obfuscation, eval usage, unusual redirects) → DC0085 Network Traffic Content

  macos:unifiedlog Anomalous dyld dynamic library loads or RWX memory mappings in browser process → DC0020 Process Modification

  Tunable: SleepyUserThreshold ExtensionInstallPolicy
  AN0501 Identity Provider

  Post-compromise identity & session anomalies that follow a drive-by compromise: token reuse from new/unfamiliar IPs, anomalous sign-in patterns for previously inactive users, unexpected consent/grant events, or provisioning changes. Defender sees an endpoint/browser compromise (network + endpoint signals) followed by unusual IdP events: new refresh token issuance, consent/consent-grant events, odd MFA bypass patterns, or unusual OAuth client registrations.

  azure:signinlogs SignIn: Sign-ins flagged as atypical (new geographic region, unfamiliar device id) shortly after correlated endpoint/browser compromise times → DC0002 User Account Authentication

  m365:unified Application Consent grants, new OAuth client registrations, or unusual admin-level activities executed by a user account shortly after suspected drive-by compromise → DC0038 Application Log Content

  saas:auth Refresh token issuance or refresh token usage from new IPs or user agents → DC0013 User Account Metadata

  AWS:CloudTrail ConsoleLogin: If IdP backed by cloud provider, Console login from new IP/agent after correlated endpoint compromise → DC0067 Logon Session Creation

  Tunable: IdpAlertWindow HighRiskCountryList DeviceTrustLevel

Sigma rules tagged attack.t1189 (3)

T1574 Hijack Execution Flow primary impact

• DET0218 Detection Strategy for Hijack Execution Flow across OS platforms.
  AN0609 Windows

  Unusual modifications to service binary paths, registry keys, or DLL load paths resulting in alternate execution flow. Defender observes registry key modifications, suspicious file writes into system directories, and processes loading libraries from abnormal paths.

  WinEventLog:Sysmon EventCode=1 → DC0032 Process Creation

  WinEventLog:Sysmon EventCode=7 → DC0016 Module Load

  WinEventLog:Security EventCode=4657 → DC0063 Windows Registry Key Modification

  WinEventLog:Sysmon EventCode=11 → DC0039 File Creation

  Tunable: ServiceBaseline AllowedDllPaths TimeWindow
  AN0610 Linux

  Adversary manipulation of shared library paths, environment variables, or replacement of service binaries. Defender observes suspicious modifications in /etc/ld.so.preload, service config changes, or file writes replacing existing executables.

  auditd:SYSCALL open/write syscalls targeting /etc/ld.so.preload or binaries in /usr/bin → DC0061 File Modification

  linux:syslog Service restart with modified executable path → DC0041 Service Metadata

  linux:osquery Process execution with LD_PRELOAD or modified library path → DC0032 Process Creation

  Tunable: MonitoredDirectories EnvVarMonitors
  AN0611 macOS

  Abuse of DYLD_INSERT_LIBRARIES or hijacking framework paths for malicious libraries. Defender observes processes invoking abnormal dylibs, modified plist files, or persistence entries pointing to altered binaries.

  macos:unifiedlog Execution of process with DYLD_INSERT_LIBRARIES set → DC0032 Process Creation

  macos:unifiedlog Modified application plist or binary replacement in /Applications → DC0061 File Modification

  macos:unifiedlog Dylib loaded from abnormal location → DC0016 Module Load

  Tunable: AllowedDylibPaths PlistMonitors

Sigma rules tagged attack.t1574 (8)