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    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

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Rewterz Threat Advisory – Multiple Vulnerabilities in PHP Could Allow for Arbitrary Code Execution

October 28, 2019

Severity

High

Analysis Summary

Multiple vulnerabilities have been discovered in PHP, the most severe of which could allow for arbitrary code execution. PHP is a programming language originally designed for use in web-based applications with HTML content. PHP supports a wide variety of platforms and is used by numerous web-based software applications. Successfully exploiting the most severe of these vulnerabilities could allow for arbitrary code execution in the context of the affected application. Depending on the privileges associated with the application, an attacker could install programs; view, change, or delete data; or create new accounts with full user rights. Failed exploitation could result in a denial-of-service condition.

Version 7.1.33

· Bug #78599 (env_path_info underflow in fpm_main.c can lead to RCE)

Version 7.2.24

· Bug #78535 (auto_detect_line_endings value not parsed as bool)

· Bug #78620 (Out of memory error)

· Bug #78442 (‘Illegal component’ on exif_read_data since PHP7)

· Bug #78599 (env_path_info underflow in fpm_main.c can lead to RCE)

· Bug #78579 (mb_decode_numericentity: args number inconsistency)

· Bug #78609 (mb_check_encoding()

· Bug #76809 (SSL settings aren’t respected when persistent connections are used)

· Bug #78623 (Regression caused by “SP call yields additional empty result set”)

· Bug #78624 (session_gc return value for user defined session handlers)

· Bug #76342 (file_get_contents waits twice specified timeout)

· Bug #78612 (strtr leaks memory when integer keys are used and the subject string shorter)

· Bug #76859 (stream_get_line skips data if used with data-generating filter)

· Bug #78641 (addGlob can modify given remove_path value)

Version 7.3.11

· Bug #78535 (auto_detect_line_endings value not parsed as bool)

· Bug #78620 (Out of memory error)

· Bug #78442 (‘Illegal component’ on exif_read_data since PHP7)

· Bug #78599 (env_path_info underflow in fpm_main.c can lead to RCE)

· Bug #78413 (request_terminate_timeout does not take effect after fastcgi_finish_request)

· Bug #78633 (Heap buffer overflow (read)

· Bug #78579 (mb_decode_numericentity: args number inconsistency)

· Bug #78609 (mb_check_encoding()

· Bug #76809 (SSL settings aren’t respected when persistent connections are used)

· Bug #78525 (Memory leak in pdo when reusing native prepared statements)

· Bug #78272 (calling preg_match()

· Bug #78623 (Regression caused by “SP call yields additional empty result set”)

· Bug #78624 (session_gc return value for user defined session handlers)

· Bug #76342 (file_get_contents waits twice specified timeout)

· Bug #78612 (strtr leaks memory when integer keys are used and the subject string shorter)

· Bug #76859 (stream_get_line skips data if used with data-generating filter)

· Bug #78641 (addGlob can modify given remove_path value)

Impact

  • Arbitrary code execution
  • Denial of service

Affected Vendors

php

Affected Products

  • PHP 7.1 Prior to Version 7.1.33
  • PHP 7.2 Prior to Version 7.2.24
  • PHP 7.3 Prior to Version 7.3.11

Remediation

  • Upgrade to the latest version of PHP immediately, after appropriate testing.
  • Verify no unauthorized system modifications have occurred on system before applying patch.
  • Apply the principle of Least Privilege to all systems and services.
  • Remind users not to visit websites or follow links provided by unknown or untrusted sources.

Platform

  • Rewterz XDR
  • Rewterz Defense
  • Rewterz Threat Intelligence

Managed Security Services

  • Managed Security Monitoring
  • Remote SOC
  • Onsite SOC
  • Hybrid SOC

Assess

  • Compromise Assessment
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  • Penetration Testing
  • Architecture Design & Review
  • Red Team Assessment
  • Purple Team Assessment
  • Social Engineering
  • Source Code Review

Transform

  • SOC Consultancy
  • SOC Maturity Assessment
  • SOC Model Evaluation
  • SOC Gap Analysis
  • SIEM Gap Analysis
  • SIEM Optimization
  • SOC Content Pack

Train

  • Simulated Cyber Attack Exercise
  • Tabletop Exercise
  • Security Awareness and Training

Respond

  • Incident Analysis
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Threat Insights

  • Threat Advisories
  • Monthly Threat Insights
  • Threat Intelligence Reports

Resources

  • Blog
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Connect With Us

  • Contact
  • Careers
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