CVE-2008-4102
CVE-2008-4102 is a high-severity vulnerability in Joomla with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.
Key facts
- Severity: High (CVSS 2.0 base score 7.5)
- EPSS exploit prediction: 2% (82nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-189
- Affected product: Joomla
- Published:
- Last modified:
Description
Joomla! 1.5 before 1.5.7 initializes PHP's PRNG with a weak seed, which makes it easier for attackers to guess the pseudo-random values produced by PHP's mt_rand function, as demonstrated by guessing password reset tokens, a different vulnerability than CVE-2008-3681.
Frequently asked questions
- What is CVE-2008-4102?
- Joomla! 1.5 before 1.5.7 initializes PHP's PRNG with a weak seed, which makes it easier for attackers to guess the pseudo-random values produced by PHP's mt_rand function, as demonstrated by guessing password reset tokens, a different vulnerability than CVE-2008-3681.
- How severe is CVE-2008-4102?
- CVE-2008-4102 has a CVSS 2.0 base score of 7.5, rated high severity.
- Is CVE-2008-4102 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2008-4102?
- CVE-2008-4102 primarily affects Joomla. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2008-4102?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2008-4102 published?
- CVE-2008-4102 was published on 2008-09-18 and last updated on 2026-06-16.
References
- http://developer.joomla.org/security/news/272-20080902-core-random-number-generation-flaw.html
- http://marc.info/?l=oss-security&m=122115344915232&w=2
- http://marc.info/?l=oss-security&m=122118210029084&w=2
- http://marc.info/?l=oss-security&m=122152798516853&w=2
- http://secunia.com/advisories/31789
- http://securityreason.com/securityalert/4271
- http://www.securityfocus.com/archive/1/496237/100/0/threaded
- http://www.sektioneins.de/advisories/SE-2008-04.txt
- http://www.suspekt.org/2008/08/17/mt_srand-and-not-so-random-numbers/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/45068
Affected products (7)
- cpe:2.3:a:joomla:joomla:1.5:*:*:*:*:*:*:*
- cpe:2.3:a:joomla:joomla:1.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:joomla:joomla:1.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:joomla:joomla:1.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:joomla:joomla:1.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:joomla:joomla:1.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:joomla:joomla:1.5.6:*:*:*:*:*:*:*
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