CVE-2018-1000888
Apache PEAR Archive_Tar PHP Object Injection and PHP Unserialization Vulnerability
Description
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.
INFO
Published Date :
Dec. 28, 2018, 4:29 p.m.
Last Modified :
June 15, 2020, 6:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2018-1000888
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-1000888.
| URL | Resource |
|---|---|
| https://blog.ripstech.com/2018/new-php-exploitation-technique/ | Exploit Third Party Advisory |
| https://cdn2.hubspot.net/hubfs/3853213/us-18-Thomas-It%27s-A-PHP-Unserialization-Vulnerability-Jim-But-Not-As-We-....pdf | Exploit Technical Description Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2019/02/msg00020.html | Third Party Advisory |
| https://pear.php.net/bugs/bug.php?id=23782 | Broken Link Third Party Advisory |
| https://pear.php.net/package/Archive_Tar/download/ | Broken Link Third Party Advisory |
| https://security.gentoo.org/glsa/202006-14 | |
| https://usn.ubuntu.com/3857-1/ | Third Party Advisory |
| https://www.debian.org/security/2019/dsa-4378 | Third Party Advisory |
| https://www.exploit-db.com/exploits/46108/ | Exploit Third Party Advisory VDB Entry |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-1000888 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-1000888 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jun. 15, 2020
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202006-14 [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 05, 2019
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/02/msg00020.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/02/msg00020.html Third Party Advisory Changed Reference Type https://www.exploit-db.com/exploits/46108/ Exploit, Third Party Advisory https://www.exploit-db.com/exploits/46108/ Exploit, Third Party Advisory, VDB Entry Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 12, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/02/msg00020.html [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 11, 2019
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://pear.php.net/bugs/bug.php?id=23782 No Types Assigned https://pear.php.net/bugs/bug.php?id=23782 Broken Link, Third Party Advisory Changed Reference Type https://blog.ripstech.com/2018/new-php-exploitation-technique/ No Types Assigned https://blog.ripstech.com/2018/new-php-exploitation-technique/ Exploit, Third Party Advisory Changed Reference Type https://www.debian.org/security/2019/dsa-4378 No Types Assigned https://www.debian.org/security/2019/dsa-4378 Third Party Advisory Changed Reference Type https://pear.php.net/package/Archive_Tar/download/ No Types Assigned https://pear.php.net/package/Archive_Tar/download/ Broken Link, Third Party Advisory Changed Reference Type https://cdn2.hubspot.net/hubfs/3853213/us-18-Thomas-It%27s-A-PHP-Unserialization-Vulnerability-Jim-But-Not-As-We-....pdf No Types Assigned https://cdn2.hubspot.net/hubfs/3853213/us-18-Thomas-It%27s-A-PHP-Unserialization-Vulnerability-Jim-But-Not-As-We-....pdf Exploit, Technical Description, Third Party Advisory Changed Reference Type https://www.exploit-db.com/exploits/46108/ No Types Assigned https://www.exploit-db.com/exploits/46108/ Exploit, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3857-1/ No Types Assigned https://usn.ubuntu.com/3857-1/ Third Party Advisory Added CWE CWE-502 Added CPE Configuration OR *cpe:2.3:a:php:pear_archive_tar:*:*:*:*:*:*:*:* versions up to (including) 1.4.3 Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 31, 2019
Action Type Old Value New Value Added Reference https://www.debian.org/security/2019/dsa-4378 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 15, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3857-1/ [No Types Assigned] -
CVE Modified by [email protected]
Jan. 11, 2019
Action Type Old Value New Value Added Reference https://www.exploit-db.com/exploits/46108/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-1000888 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-1000888
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.75 }} 0.24%
score
0.80887
percentile