SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-11831

The PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 does not prevent directory traversal, which allows attackers to bypass a deserialization protection mechanism, as demonstrated by a…

CRITICAL 9.8EPSS 5.59%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (5.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 does not prevent directory traversal, which allows attackers to bypass a deserialization protection mechanism, as demonstrated by a phar:///path/bad.phar/../good.phar URL.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
5.59% probability · 92th percentile
CISA KEV
Not listed
Weakness
CWE-22, CWE-502
Affected
typo3/pharstreamwrapper · debian/debian linux · fedoraproject/fedora · drupal/drupal · joomla/joomla\!
Source
cve@mitre.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.