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CVE detail

CVE-2018-1000888

PEAR Archive_Tar version 1.4.3 and earlier contains a CWE-502, CWE-915 vulnerability in the Archive_Tar class. There are several file operations with `$v_header['filename']` as parameter (such as file_exists, is_file, is_dir, etc). When extract is called without a specific prefix path, we can trigger unserialization by crafting a tar file with `phar://[path_to_malicious_phar_file]` as path. Object injection can be used to trigger destruct in the loaded PHP classes, e.g. the Archive_Tar class itself. With Archive_Tar object injection, arbitrary file deletion can occur because `@unlink($this->_temp_tarname)` is called. If another class with useful gadget is loaded, it may possible to cause remote code execution that can result in files being deleted or possibly modified. This vulnerability appears to have been fixed in 1.4.4.

CVSS 8.8 · HighBuzz score 17.5

Buzz score

Why this CVE is surfacing

Buzz score total 17.5

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 11.0 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
11.0
2 evidence mentions in the snapshot
Diversity score
6.5
2 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
2 source links · newest first
  • Drupal fixes 2 critical code execution issues flaws in Drupal 7, 8.5 and 8.6Security Affairs

    Drupal released security updates for Drupal 7, 8.5 and 8.6 that address two “critical” security vulnerabilities that could be exploited for arbitrary code execution. The first vulnerability could be exploited by a remote attacker to execute arbitrary PHP code. The flaw resides in the phar stream wrapper implemented in PHP and is related to the way […]

    newssecurityaffairs.comJan 17, 2019, 12:39 PM
  • Two Code Execution Flaws Patched in DrupalSecurityWeek

    Updates released on Wednesday for Drupal 7, 8.5 and 8.6 address two potentially serious vulnerabilities that can be exploited for arbitrary code execution.

    newswww.securityweek.comJan 17, 2019, 7:08 AM

Exploit code

Public exploit repository references

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0 repository references · best confidence N/A · max 0 stars
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