CVE-2009-4018 Details
The proc_open function in ext/standard/proc_open.c in PHP before 5.2.11 and 5.3.x before 5.3.1 does not enforce the (1) safe_mode_allowed_env_vars and (2) safe_mode_protected_env_vars directives, which allows context-dependent attackers to execute programs with an arbitrary environment via the env parameter, as demonstrated by a crafted value of the LD_LIBRARY_PATH environment variable.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2009-4018
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
11.34 Probability of exploitation activity being observed over the next 30 days (95th percentile)
CVSS score for CVE-2009-4018
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
7.5 High
Products affected by CVE-2009-4018
php 1.0
php 1.0.0
php 1.1
php 1.2.3
php 3.0.12
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Not available
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CVE-2009-4018 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 58,754 20.94%
FR 46,250 16.48%
DE 38,231 13.62%
KR 21,856 7.79%
TW 19,304 6.88%
JP 18,284 6.52%
IT 9,248 3.30%
RU 6,489 2.31%
CA 5,656 2.02%
NL 4,399 1.57%

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CVE-2009-4018 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 121,260 64.80%
Technology 59,559 31.83%
Education 1,191 0.64%
Real Estate 957 0.51%
Utilities 902 0.48%
Media/Entertainment 800 0.43%
Business Services 584 0.31%
Government/Politics 529 0.28%
Consumer Goods 296 0.16%
Retail 233 0.12%

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