Vulnerability-Lookup

CNVD-2020-14759

Vulnerability from cnvd - Published: 2020-03-01

Title

PHP PHAR归档文件权限漏洞

Description

PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHPGroup和开放源代码社区的共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发，支持多种数据库及操作系统。 PHP 7.2.28之前的7.2.x版本、7.3.15之前的7.3.x版本和7.4.3之前的7.4.x版本中存在安全漏洞，该漏洞源于使用‘PharData：：buildFromIterator()’函数创建PHAR归档文件时，该文件被分配了默认文件（0666或所有访问权限）。攻击者可利用该漏洞获取敏感信息。

Severity

中

Patch Name

PHP PHAR归档文件权限漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://bugs.php.net/bug.php?id=79082

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-7063

Impacted products

Name
['PHP PHP 7.2.，<7.2.28', 'PHP PHP 7.3.，<7.3.15', 'PHP PHP 7.4.*，<7.4.3']

Show details on source website

JSON

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}

CVE-2020-7063 (GCVE-0-2020-7063)

Vulnerability from cvelistv5 – Published: 2020-02-27 20:25 – Updated: 2024-09-16 16:49

Title

Files added to tar with Phar::buildFromIterator have all-access permissions

Summary

In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when creating PHAR archive using PharData::buildFromIterator() function, the files are added with default permissions (0666, or all access) even if the original files on the filesystem were with more restrictive permissions. This may result in files having more lax permissions than intended when such archive is extracted.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CWE

CWE-281 - Improper Preservation of Permissions

Assigner

php mitre root

References

8 references

URL	Tags
https://bugs.php.net/bug.php?id=79082	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://security.gentoo.org/glsa/202003-57	vendor-advisoryx_refsource_GENTOO
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4330-1/	vendor-advisoryx_refsource_UBUNTU
https://www.debian.org/security/2020/dsa-4717	vendor-advisoryx_refsource_DEBIAN
https://www.debian.org/security/2020/dsa-4719	vendor-advisoryx_refsource_DEBIAN
https://www.tenable.com/security/tns-2021-14	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
PHP Group	PHP	Affected: 7.3.x , < 7.3.15 (custom) Affected: 7.4.x , < 7.4.3 (custom) Affected: 7.2.x , < 7.2.28 (custom)

Date Public

2020-02-17 00:00

Credits

Reported by dr at loopia dot rs

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.