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CVE-2008-1891: Directory traversal vulnerability in WEBrick in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 befo...

Directory traversal vulnerability in WEBrick in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2, when using NTFS or FAT filesystems, allows remote attackers to read arbitrary CGI files via a trailing (1) + (plus), (2) %2b (encoded plus), (3) . (dot), (4) %2e (encoded dot), or (5) %20 (encoded space) character in the URI, possibly related to the WEBrick::HTTPServlet::FileHandler and WEBrick::HTTPServer.new functionality and the :DocumentRoot option.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is an old Ruby WEBrick flaw that could let a remote user read CGI files from a vulnerable server. The risk is mainly exposure of application code or secrets. It only applies to specific Ruby versions when WEBrick is used on NTFS or FAT filesystems. Exposure is most likely in legacy Ruby 1.8.x or 1.9.0 deployments using WEBrick to serve CGI content from NTFS or FAT volumes. Modern Ruby deployments or non-WEBrick production servers are less likely affected, but old bundled appliances or internal Windows-hosted tools should be checked. Treat this as a legacy exposure cleanup item with business impact if old Ruby services still exist. It is not marked as known exploited in the provided data, but it can expose code or secrets from affected services. Mitigation focus: Upgrade Ruby to a fixed release or vendor-patched package.; Retire internet-exposed WEBrick on legacy Ruby versions.; Avoid serving CGI files from WEBrick DocumentRoot on NTFS or FAT..

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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3Source links

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Affected products

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Weakness

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