Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2020-27783 CVE-2021-43818 |
CWE-ID | CWE-79 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Amazon Linux AMI Operating systems & Components / Operating system python-lxml Operating systems & Components / Operating system package or component |
Vendor | Amazon Web Services |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU48793
Risk: Medium
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-27783
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within lxml Python clean module. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
MitigationUpdate the affected packages:
i686:Vulnerable software versions
python-lxml-debuginfo-3.2.1-4.10.amzn1.i686
python26-lxml-3.2.1-4.10.amzn1.i686
python27-lxml-3.2.1-4.10.amzn1.i686
noarch:
python26-lxml-docs-3.2.1-4.10.amzn1.noarch
python27-lxml-docs-3.2.1-4.10.amzn1.noarch
src:
python-lxml-3.2.1-4.10.amzn1.src
x86_64:
python-lxml-debuginfo-3.2.1-4.10.amzn1.x86_64
python26-lxml-3.2.1-4.10.amzn1.x86_64
python27-lxml-3.2.1-4.10.amzn1.x86_64
Amazon Linux AMI: All versions
python-lxml: before 3.2.1-4.10
External linkshttp://alas.aws.amazon.com/ALAS-2023-1709.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU59660
Risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-43818
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within the HTML Cleaner in lxml.html. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
MitigationUpdate the affected packages:
i686:Vulnerable software versions
python-lxml-debuginfo-3.2.1-4.10.amzn1.i686
python26-lxml-3.2.1-4.10.amzn1.i686
python27-lxml-3.2.1-4.10.amzn1.i686
noarch:
python26-lxml-docs-3.2.1-4.10.amzn1.noarch
python27-lxml-docs-3.2.1-4.10.amzn1.noarch
src:
python-lxml-3.2.1-4.10.amzn1.src
x86_64:
python-lxml-debuginfo-3.2.1-4.10.amzn1.x86_64
python26-lxml-3.2.1-4.10.amzn1.x86_64
python27-lxml-3.2.1-4.10.amzn1.x86_64
Amazon Linux AMI: All versions
python-lxml: before 3.2.1-4.10
External linkshttp://alas.aws.amazon.com/ALAS-2023-1709.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.