Security Vulnerabilities - CVEs Published In May 2023
Issue summary: Processing some specially crafted ASN.1 object identifiers or
data containing them may be very slow.
Impact summary: Applications that use OBJ_obj2txt() directly, or use any of
the OpenSSL subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS with no message
size limit may experience notable to very long delays when processing those
messages, which may lead to a Denial of Service.
An OBJECT IDENTIFIER is composed of a series of numbers - sub-identifiers -
most of which have no size limit. OBJ_obj2txt() may be used to translate
an ASN.1 OBJECT IDENTIFIER given in DER encoding form (using the OpenSSL
type ASN1_OBJECT) to its canonical numeric text form, which are the
sub-identifiers of the OBJECT IDENTIFIER in decimal form, separated by
periods.
When one of the sub-identifiers in the OBJECT IDENTIFIER is very large
(these are sizes that are seen as absurdly large, taking up tens or hundreds
of KiBs), the translation to a decimal number in text may take a very long
time. The time complexity is O(n^2) with 'n' being the size of the
sub-identifiers in bytes (*).
With OpenSSL 3.0, support to fetch cryptographic algorithms using names /
identifiers in string form was introduced. This includes using OBJECT
IDENTIFIERs in canonical numeric text form as identifiers for fetching
algorithms.
Such OBJECT IDENTIFIERs may be received through the ASN.1 structure
AlgorithmIdentifier, which is commonly used in multiple protocols to specify
what cryptographic algorithm should be used to sign or verify, encrypt or
decrypt, or digest passed data.
Applications that call OBJ_obj2txt() directly with untrusted data are
affected, with any version of OpenSSL. If the use is for the mere purpose
of display, the severity is considered low.
In OpenSSL 3.0 and newer, this affects the subsystems OCSP, PKCS7/SMIME,
CMS, CMP/CRMF or TS. It also impacts anything that processes X.509
certificates, including simple things like verifying its signature.
The impact on TLS is relatively low, because all versions of OpenSSL have a
100KiB limit on the peer's certificate chain. Additionally, this only
impacts clients, or servers that have explicitly enabled client
authentication.
In OpenSSL 1.1.1 and 1.0.2, this only affects displaying diverse objects,
such as X.509 certificates. This is assumed to not happen in such a way
that it would cause a Denial of Service, so these versions are considered
not affected by this issue in such a way that it would be cause for concern,
and the severity is therefore considered low.
CVSS Score
6.5
EPSS Score
0.92
Published
2023-05-30
A vulnerability was found in Abstrium Pydio Cells 4.2.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Change Subscription Handler. The manipulation leads to authorization bypass. The exploit has been disclosed to the public and may be used. Upgrading to version 4.2.1 is able to address this issue. It is recommended to upgrade the affected component. VDB-230210 is the identifier assigned to this vulnerability.
CVSS Score
4.6
EPSS Score
0.0
Published
2023-05-30
A vulnerability classified as critical has been found in Abstrium Pydio Cells 4.2.0. This affects an unknown part of the component User Creation Handler. The manipulation leads to improper access controls. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 4.2.1 is able to address this issue. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-230211.
CVSS Score
4.7
EPSS Score
0.0
Published
2023-05-30
Prestashop salesbooster <= 1.10.4 is vulnerable to Incorrect Access Control via modules/salesbooster/downloads/download.php.
CVSS Score
7.5
EPSS Score
0.002
Published
2023-05-30
The privilege escalation vulnerability in the Zyxel GS1900-8 firmware version
V2.70(AAHH.3) and the GS1900-8HP firmware version V2.70(AAHI.3) could allow an authenticated, local attacker with administrator privileges to execute some system commands as 'root' on a vulnerable device via SSH.
CVSS Score
6.7
EPSS Score
0.0
Published
2023-05-30
Prototype Pollution in GitHub repository antfu/utils prior to 0.7.3.
CVSS Score
5.4
EPSS Score
0.001
Published
2023-05-30
A vulnerability, which was classified as problematic, has been found in SourceCodester Students Online Internship Timesheet Syste 1.0. Affected by this issue is some unknown functionality of the file /ajax.php?action=save_company. The manipulation of the argument name with the input <script>alert(document.cookie)</script> leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-230204.
CVSS Score
2.4
EPSS Score
0.001
Published
2023-05-30
Arbitrary code execution in Apache Airflow CNCF Kubernetes provider version 5.0.0 allows user to change xcom sidecar image and resources via Airflow connection.
In order to exploit this weakness, a user would already need elevated permissions (Op or Admin) to change the connection object in this manner. Operators should upgrade to provider version 7.0.0 which has removed the vulnerability.
CVSS Score
7.2
EPSS Score
0.003
Published
2023-05-30
The Login rebuilder WordPress plugin before 2.8.1 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).
CVSS Score
4.8
EPSS Score
0.001
Published
2023-05-30
The Product Addons & Fields for WooCommerce WordPress plugin before 32.0.7 does not sanitize and escape some URL parameters, leading to Reflected Cross-Site Scripting.
CVSS Score
6.1
EPSS Score
0.151
Published
2023-05-30