ID |
CVE-2018-1000888
|
Summary |
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. |
References |
|
Vulnerable Configurations |
-
cpe:2.3:a:php:pear_archive_tar:*:*:*:*:*:*:*:*
cpe:2.3:a:php:pear_archive_tar:*:*:*:*:*:*:*:*
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cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
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cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
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cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
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cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
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cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
|
CVSS |
Base: | 6.8 (as of 15-06-2020 - 18:15) |
Impact: | |
Exploitability: | |
|
CWE |
CWE-502 |
CAPEC |
-
Object Injection
An adversary attempts to exploit an application by injecting additional, malicious content during its processing of serialized objects. Developers leverage serialization in order to convert data or state into a static, binary format for saving to disk or transferring over a network. These objects are then deserialized when needed to recover the data/state. By injecting a malformed object into a vulnerable application, an adversary can potentially compromise the application by manipulating the deserialization process. This can result in a number of unwanted outcomes, including remote code execution.
|
Access |
Vector | Complexity | Authentication |
NETWORK |
MEDIUM |
NONE |
|
Impact |
Confidentiality | Integrity | Availability |
PARTIAL |
PARTIAL |
PARTIAL |
|
cvss-vector
via4
|
AV:N/AC:M/Au:N/C:P/I:P/A:P
|
refmap
via4
|
confirm | | debian | DSA-4378 | exploit-db | 46108 | gentoo | GLSA-202006-14 | misc | | mlist | [debian-lts-announce] 20190212 [SECURITY] [DLA 1674-1] php5 security update | ubuntu | USN-3857-1 |
|
Last major update |
15-06-2020 - 18:15 |
Published |
28-12-2018 - 16:29 |
Last modified |
15-06-2020 - 18:15 |