| 2021-11-23 16:05:53 |
Dwi Siswanto |
bug |
|
|
added bug |
| 2021-11-23 17:34:21 |
Jeremy Stanley |
bug task added |
|
ossa |
|
| 2021-11-23 17:34:33 |
Jeremy Stanley |
ossa: status |
New |
Incomplete |
|
| 2021-11-23 17:35:20 |
Jeremy Stanley |
description |
# Summary
nova contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service).
# Description
ReDoS, or Regular Expression Denial of Service, is a vulnerability affecting inefficient regular expressions which can perform extremely badly when run on a crafted input string.
# Proof of Concept
To see that the regular expression is vulnerable, copy-paste it into a separate file & run the code as shown in below.
```python
import re
log_remove_context = re.compile(
r"(.)*LOG\.(.*)\(.*(context=[_a-zA-Z0-9].*)+.*\)")
log_remove_context.match('LOG.' + '(' * 3456)
```
# Impact
This issue may lead to a denial of service.
# References
- https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS |
This issue is being treated as a potential security risk under
embargo. Please do not make any public mention of embargoed
(private) security vulnerabilities before their coordinated
publication by the OpenStack Vulnerability Management Team in the
form of an official OpenStack Security Advisory. This includes
discussion of the bug or associated fixes in public forums such as
mailing lists, code review systems and bug trackers. Please also
avoid private disclosure to other individuals not already approved
for access to this information, and provide this same reminder to
those who are made aware of the issue prior to publication. All
discussion should remain confined to this private bug report, and
any proposed fixes should be added to the bug as attachments. This
embargo shall not extend past 2022-02-21 and will be made
public by or on that date even if no fix is identified.
# Summary
nova contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service).
# Description
ReDoS, or Regular Expression Denial of Service, is a vulnerability affecting inefficient regular expressions which can perform extremely badly when run on a crafted input string.
# Proof of Concept
To see that the regular expression is vulnerable, copy-paste it into a separate file & run the code as shown in below.
```python
import re
log_remove_context = re.compile(
r"(.)*LOG\.(.*)\(.*(context=[_a-zA-Z0-9].*)+.*\)")
log_remove_context.match('LOG.' + '(' * 3456)
```
# Impact
This issue may lead to a denial of service.
# References
- https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS |
|
| 2021-11-23 17:35:50 |
Jeremy Stanley |
bug |
|
|
added subscriber Nova Core security contacts |
| 2021-11-23 18:31:51 |
Jeremy Stanley |
information type |
Private Security |
Public |
|
| 2021-11-23 18:32:04 |
Jeremy Stanley |
description |
This issue is being treated as a potential security risk under
embargo. Please do not make any public mention of embargoed
(private) security vulnerabilities before their coordinated
publication by the OpenStack Vulnerability Management Team in the
form of an official OpenStack Security Advisory. This includes
discussion of the bug or associated fixes in public forums such as
mailing lists, code review systems and bug trackers. Please also
avoid private disclosure to other individuals not already approved
for access to this information, and provide this same reminder to
those who are made aware of the issue prior to publication. All
discussion should remain confined to this private bug report, and
any proposed fixes should be added to the bug as attachments. This
embargo shall not extend past 2022-02-21 and will be made
public by or on that date even if no fix is identified.
# Summary
nova contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service).
# Description
ReDoS, or Regular Expression Denial of Service, is a vulnerability affecting inefficient regular expressions which can perform extremely badly when run on a crafted input string.
# Proof of Concept
To see that the regular expression is vulnerable, copy-paste it into a separate file & run the code as shown in below.
```python
import re
log_remove_context = re.compile(
r"(.)*LOG\.(.*)\(.*(context=[_a-zA-Z0-9].*)+.*\)")
log_remove_context.match('LOG.' + '(' * 3456)
```
# Impact
This issue may lead to a denial of service.
# References
- https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS |
# Summary
nova contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service).
# Description
ReDoS, or Regular Expression Denial of Service, is a vulnerability affecting inefficient regular expressions which can perform extremely badly when run on a crafted input string.
# Proof of Concept
To see that the regular expression is vulnerable, copy-paste it into a separate file & run the code as shown in below.
```python
import re
log_remove_context = re.compile(
r"(.)*LOG\.(.*)\(.*(context=[_a-zA-Z0-9].*)+.*\)")
log_remove_context.match('LOG.' + '(' * 3456)
```
# Impact
This issue may lead to a denial of service.
# References
- https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS |
|
| 2021-11-23 18:32:21 |
Jeremy Stanley |
ossa: status |
Incomplete |
Won't Fix |
|
| 2021-11-30 15:01:21 |
Sylvain Bauza |
nova: status |
New |
Won't Fix |
|
